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/tools/nodes/test_cutouts.py

@@ -6,17 +6,15 @@ import numpy as np
 import pytest
 from tools.nodes.groups.image_cutout import build_image_cutout_group
 from tests.support.nodes import CUTOUT_BUILDERS
-from anyimage.operators.cutout_tool.object import load_cutout_node_group
 
 
 from anyimage.common.object import modifier_input_identifier, set_modifier_input
 
 
-@pytest.mark.parametrize("source", ("definition", "asset"))
 @pytest.mark.parametrize("shape", ("SOLID", "DEPTH_SOLID"))
-def test_depth_axis_is_removed_from_cutout_options(shape, source):
+def test_depth_axis_is_removed_from_cutout_options(shape):
     bpy.ops.wm.read_factory_settings(use_empty=True)
-    group = CUTOUT_BUILDERS[shape]() if source == "definition" else load_cutout_node_group(shape)
+    group = CUTOUT_BUILDERS[shape]()
     inputs = {item.name: item for item in group.interface.items_tree
               if item.item_type == "SOCKET" and item.in_out == "INPUT"}
     assert "Depth Axis" not in inputs