Tests: Enable OptiX OSL window test

The window coordinate test was on the block list due to the
world shader rendering it incorrectly.

This has since been fixed, so this test can be removed from the
blocklist.

Ref: blender/blender#123012
Ref: blender/blender@4f0aef1fde

tests/python/cycles_render_tests.py

@@ -86,8 +86,6 @@ BLOCKLIST_OPTIX_OSL = [
     'texture_coordinate_generated.blend',
     'principled_absorption.blend',
     'denoise_volume.blend',
-    # The Window texture coordinate is blank on the World shader in OptiX OSL. See 132516
-    'texture_coordinate_window.blend',
     # The 3D texture doesn't have the right mappings
     'point_density_.*_object.blend',
     # Dicing tests use wireframe node which doesn't appear to be supported with OptiX OSL