Refactor tests and remove unused imports

- Cleaned up test files by removing unnecessary imports and unused parameters.
- Simplified test functions by eliminating redundant parameterization and consolidating logic.
- Updated test cases to directly use defined values instead of parameterized inputs where applicable.
- Enhanced readability and maintainability of the test code across various test files.

tests/anyimage/operators/test_frame_projection.py

@@ -287,8 +287,6 @@ class FrameProjectionTest(unittest.TestCase):
 
 
     def test_frame_keeps_positive_active_origin_as_result_depth_location(self):
-        import numpy as np
-
         marker = SimpleNamespace(copy=lambda: "active-origin")
         source = {
             "object": SimpleNamespace(