diff --git a/tests/vendor/test_contextvars.py b/tests/vendor/test_contextvars.py
deleted file mode 100644
index 84d86113952..00000000000
--- a/tests/vendor/test_contextvars.py
+++ /dev/null
@@ -1,348 +0,0 @@
-# Tests are copied from cpython/Lib/test/test_context.py
-# License: PSFL
-# Copyright: 2018 Python Software Foundation
-
-
-import concurrent.futures
-import functools
-import random
-import time
-import unittest
-
-import pytest
-
-from ddtrace.vendor import contextvars
-
-
-def isolated_context(func):
-    """Needed to make reftracking test mode work."""
-
-    @functools.wraps(func)
-    def wrapper(*args, **kwargs):
-        ctx = contextvars.Context()
-        return ctx.run(func, *args, **kwargs)
-
-    return wrapper
-
-
-class ContextTest(unittest.TestCase):
-    def test_context_var_new_1(self):
-        with self.assertRaises(TypeError):
-            contextvars.ContextVar()
-
-        with pytest.raises(TypeError) as e:
-            contextvars.ContextVar(1)
-        assert "must be a str" in str(e.value)
-
-        c = contextvars.ContextVar("a")
-        self.assertNotEqual(hash(c), hash("a"))
-
-    @isolated_context
-    def test_context_var_repr_1(self):
-        c = contextvars.ContextVar("a")
-        self.assertIn("a", repr(c))
-
-        c = contextvars.ContextVar("a", default=123)
-        self.assertIn("123", repr(c))
-
-        lst = []
-        c = contextvars.ContextVar("a", default=lst)
-        lst.append(c)
-        self.assertIn("...", repr(c))
-        self.assertIn("...", repr(lst))
-
-        t = c.set(1)
-        self.assertIn(repr(c), repr(t))
-        self.assertNotIn(" used ", repr(t))
-        c.reset(t)
-        self.assertIn(" used ", repr(t))
-
-    def test_context_new_1(self):
-        with self.assertRaises(TypeError):
-            contextvars.Context(1)
-        with self.assertRaises(TypeError):
-            contextvars.Context(1, a=1)
-        with self.assertRaises(TypeError):
-            contextvars.Context(a=1)
-        contextvars.Context(**{})
-
-    def test_context_typerrors_1(self):
-        ctx = contextvars.Context()
-
-        with pytest.raises(TypeError) as e:
-            ctx[1]
-        assert "ContextVar key was expected" in str(e.value)
-
-        with pytest.raises(TypeError):
-            assert 1 in ctx
-        assert "ContextVar key was expected" in str(e.value)
-
-        with pytest.raises(TypeError) as e:
-            ctx.get(1)
-        assert "ContextVar key was expected" in str(e.value)
-
-    def test_context_get_context_1(self):
-        ctx = contextvars.copy_context()
-        self.assertIsInstance(ctx, contextvars.Context)
-
-    def test_context_run_1(self):
-        ctx = contextvars.Context()
-
-        with pytest.raises(TypeError):
-            ctx.run()
-
-    def test_context_run_2(self):
-        ctx = contextvars.Context()
-
-        def func(*args, **kwargs):
-            kwargs["spam"] = "foo"
-            args += ("bar",)
-            return args, kwargs
-
-        for f in (func, functools.partial(func)):
-            # partial doesn't support FASTCALL
-
-            self.assertEqual(ctx.run(f), (("bar",), {"spam": "foo"}))
-            self.assertEqual(ctx.run(f, 1), ((1, "bar"), {"spam": "foo"}))
-
-            self.assertEqual(ctx.run(f, a=2), (("bar",), {"a": 2, "spam": "foo"}))
-
-            self.assertEqual(ctx.run(f, 11, a=2), ((11, "bar"), {"a": 2, "spam": "foo"}))
-
-            a = {}
-            self.assertEqual(ctx.run(f, 11, **a), ((11, "bar"), {"spam": "foo"}))
-            self.assertEqual(a, {})
-
-    def test_context_run_3(self):
-        ctx = contextvars.Context()
-
-        def func(*args, **kwargs):
-            1 / 0
-
-        with self.assertRaises(ZeroDivisionError):
-            ctx.run(func)
-        with self.assertRaises(ZeroDivisionError):
-            ctx.run(func, 1, 2)
-        with self.assertRaises(ZeroDivisionError):
-            ctx.run(func, 1, 2, a=123)
-
-    @isolated_context
-    def test_context_run_4(self):
-        ctx1 = contextvars.Context()
-        ctx2 = contextvars.Context()
-        var = contextvars.ContextVar("var")
-
-        def func2():
-            self.assertIsNone(var.get(None))
-
-        def func1():
-            self.assertIsNone(var.get(None))
-            var.set("spam")
-            ctx2.run(func2)
-            self.assertEqual(var.get(None), "spam")
-
-            cur = contextvars.copy_context()
-            self.assertEqual(len(cur), 1)
-            self.assertEqual(cur[var], "spam")
-            return cur
-
-        returned_ctx = ctx1.run(func1)
-        self.assertEqual(ctx1, returned_ctx)
-        self.assertEqual(returned_ctx[var], "spam")
-        self.assertIn(var, returned_ctx)
-
-    def test_context_run_5(self):
-        ctx = contextvars.Context()
-        var = contextvars.ContextVar("var")
-
-        def func():
-            self.assertIsNone(var.get(None))
-            var.set("spam")
-            1 / 0
-
-        with self.assertRaises(ZeroDivisionError):
-            ctx.run(func)
-
-        self.assertIsNone(var.get(None))
-
-    def test_context_run_6(self):
-        ctx = contextvars.Context()
-        c = contextvars.ContextVar("a", default=0)
-
-        def fun():
-            self.assertEqual(c.get(), 0)
-            self.assertIsNone(ctx.get(c))
-
-            c.set(42)
-            self.assertEqual(c.get(), 42)
-            self.assertEqual(ctx.get(c), 42)
-
-        ctx.run(fun)
-
-    def test_context_run_7(self):
-        ctx = contextvars.Context()
-
-        def fun():
-            with pytest.raises(RuntimeError) as e:
-                ctx.run(fun)
-            assert "is already entered" in str(e.value)
-
-        ctx.run(fun)
-
-    @isolated_context
-    def test_context_getset_1(self):
-        c = contextvars.ContextVar("c")
-        with self.assertRaises(LookupError):
-            c.get()
-
-        self.assertIsNone(c.get(None))
-
-        t0 = c.set(42)
-        self.assertEqual(c.get(), 42)
-        self.assertEqual(c.get(None), 42)
-        self.assertIs(t0.old_value, t0.MISSING)
-        self.assertIs(t0.old_value, contextvars.Token.MISSING)
-        self.assertIs(t0.var, c)
-
-        t = c.set("spam")
-        self.assertEqual(c.get(), "spam")
-        self.assertEqual(c.get(None), "spam")
-        self.assertEqual(t.old_value, 42)
-        c.reset(t)
-
-        self.assertEqual(c.get(), 42)
-        self.assertEqual(c.get(None), 42)
-
-        c.set("spam2")
-        with pytest.raises(RuntimeError) as e:
-            c.reset(t)
-        assert "has already been used" in str(e.value)
-        self.assertEqual(c.get(), "spam2")
-
-        ctx1 = contextvars.copy_context()
-        self.assertIn(c, ctx1)
-
-        c.reset(t0)
-        with pytest.raises(RuntimeError):
-            c.reset(t0)
-        assert "has already been used" in str(e.value)
-        self.assertIsNone(c.get(None))
-
-        self.assertIn(c, ctx1)
-        self.assertEqual(ctx1[c], "spam2")
-        self.assertEqual(ctx1.get(c, "aa"), "spam2")
-        self.assertEqual(len(ctx1), 1)
-        self.assertEqual(list(ctx1.items()), [(c, "spam2")])
-        self.assertEqual(list(ctx1.values()), ["spam2"])
-        self.assertEqual(list(ctx1.keys()), [c])
-        self.assertEqual(list(ctx1), [c])
-
-        ctx2 = contextvars.copy_context()
-        self.assertNotIn(c, ctx2)
-        with self.assertRaises(KeyError):
-            ctx2[c]
-        self.assertEqual(ctx2.get(c, "aa"), "aa")
-        self.assertEqual(len(ctx2), 0)
-        self.assertEqual(list(ctx2), [])
-
-    @isolated_context
-    def test_context_getset_2(self):
-        v1 = contextvars.ContextVar("v1")
-        v2 = contextvars.ContextVar("v2")
-
-        t1 = v1.set(42)
-        with pytest.raises(ValueError) as e:
-            v2.reset(t1)
-        assert "by a different" in str(e.value)
-
-    @isolated_context
-    def test_context_getset_3(self):
-        c = contextvars.ContextVar("c", default=42)
-        ctx = contextvars.Context()
-
-        def fun():
-            self.assertEqual(c.get(), 42)
-            with self.assertRaises(KeyError):
-                ctx[c]
-            self.assertIsNone(ctx.get(c))
-            self.assertEqual(ctx.get(c, "spam"), "spam")
-            self.assertNotIn(c, ctx)
-            self.assertEqual(list(ctx.keys()), [])
-
-            t = c.set(1)
-            self.assertEqual(list(ctx.keys()), [c])
-            self.assertEqual(ctx[c], 1)
-
-            c.reset(t)
-            self.assertEqual(list(ctx.keys()), [])
-            with self.assertRaises(KeyError):
-                ctx[c]
-
-        ctx.run(fun)
-
-    @isolated_context
-    def test_context_getset_4(self):
-        c = contextvars.ContextVar("c", default=42)
-        ctx = contextvars.Context()
-
-        tok = ctx.run(c.set, 1)
-
-        with pytest.raises(ValueError) as e:
-            c.reset(tok)
-        assert "different Context" in str(e.value)
-
-    @isolated_context
-    def test_context_getset_5(self):
-        c = contextvars.ContextVar("c", default=42)
-        c.set([])
-
-        def fun():
-            c.set([])
-            c.get().append(42)
-            self.assertEqual(c.get(), [42])
-
-        contextvars.copy_context().run(fun)
-        self.assertEqual(c.get(), [])
-
-    def test_context_copy_1(self):
-        ctx1 = contextvars.Context()
-        c = contextvars.ContextVar("c", default=42)
-
-        def ctx1_fun():
-            c.set(10)
-
-            ctx2 = ctx1.copy()
-            self.assertEqual(ctx2[c], 10)
-
-            c.set(20)
-            self.assertEqual(ctx1[c], 20)
-            self.assertEqual(ctx2[c], 10)
-
-            ctx2.run(ctx2_fun)
-            self.assertEqual(ctx1[c], 20)
-            self.assertEqual(ctx2[c], 30)
-
-        def ctx2_fun():
-            self.assertEqual(c.get(), 10)
-            c.set(30)
-            self.assertEqual(c.get(), 30)
-
-        ctx1.run(ctx1_fun)
-
-    @isolated_context
-    def test_context_threads_1(self):
-        cvar = contextvars.ContextVar("cvar")
-
-        def sub(num):
-            for i in range(10):
-                cvar.set(num + i)
-                time.sleep(random.uniform(0.001, 0.05))
-                self.assertEqual(cvar.get(), num + i)
-            return num
-
-        tp = concurrent.futures.ThreadPoolExecutor(max_workers=10)
-        try:
-            results = list(tp.map(sub, range(10)))
-        finally:
-            tp.shutdown()
-        self.assertEqual(results, list(range(10)))