Clean up old dependencies and metadata

Author: dihm

pyproject.toml

@@ -1,5 +1,5 @@
 [build-system]
-requires = ["setuptools>=64", "wheel", "setuptools_scm>=8", "cython",
+requires = ["setuptools>=64", "setuptools_scm>=8", "cython",
             "numpy>=2.0,<3; python_version>'3.8'"]
 build-backend = "setuptools.build_meta"
 
@@ -26,15 +26,9 @@ license = {file = 'LICENSE.txt'}
 classifiers = [
     "License :: OSI Approved :: BSD License",
     "Programming Language :: Python :: 3 :: Only",
-    "Programming Language :: Python :: 3.8",
-    "Programming Language :: Python :: 3.9",
-    "Programming Language :: Python :: 3.10",
-    "Programming Language :: Python :: 3.11",
-    "Programming Language :: Python :: 3.12",
 ]
 requires-python = ">=3.8"
 dependencies = [
-    "importlib_metadata",
     "numpy>=1.17.3",
 ]
 dynamic = ["version"]