fix style

Signed-off-by: Yao Matrix <[email protected]>

Author: yao-matrix

tests/pipelines/unidiffuser/test_unidiffuser.py

@@ -29,7 +29,6 @@
     nightly,
     require_torch_2,
     require_torch_accelerator,
-    require_torch_gpu,
     run_test_in_subprocess,
     torch_device,
 )