diff --git a/src/pipelines/utils.py b/src/pipelines/utils.py
index 3cd5076..3d2771a 100644
--- a/src/pipelines/utils.py
+++ b/src/pipelines/utils.py
@@ -1,29 +1,22 @@
 import torch
 
-tensor_interpolation = None
-
-
-def get_tensor_interpolation_method():
-    return tensor_interpolation
-
-
-def set_tensor_interpolation_method(is_slerp):
-    global tensor_interpolation
-    tensor_interpolation = slerp if is_slerp else linear
-
-
 def linear(v1, v2, t):
     return (1.0 - t) * v1 + t * v2
 
 
-def slerp(
-    v0: torch.Tensor, v1: torch.Tensor, t: float, DOT_THRESHOLD: float = 0.9995
-) -> torch.Tensor:
+def slerp(v0: torch.Tensor, v1: torch.Tensor, t: float, DOT_THRESHOLD: float = 0.9995) -> torch.Tensor:
     u0 = v0 / v0.norm()
     u1 = v1 / v1.norm()
     dot = (u0 * u1).sum()
     if dot.abs() > DOT_THRESHOLD:
-        # logger.info(f'warning: v0 and v1 close to parallel, using linear interpolation instead.')
         return (1.0 - t) * v0 + t * v1
     omega = dot.acos()
     return (((1.0 - t) * omega).sin() * v0 + (t * omega).sin() * v1) / omega.sin()
+
+
+tensor_interpolation = slerp
+
+
+def get_tensor_interpolation_method():
+    return tensor_interpolation
+