Remove trailing whitespace introduced in #52175 (#53762)

Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/53762

Test Plan: CI.

Reviewed By: seemethere

Differential Revision: D26961133

Pulled By: samestep

fbshipit-source-id: 972ea480baa3f34b65327abdf7e8bfdf30788572
diff --git a/test/jit/test_remove_mutation.py b/test/jit/test_remove_mutation.py
index 33f5efc..e337641 100644
--- a/test/jit/test_remove_mutation.py
+++ b/test/jit/test_remove_mutation.py
@@ -7,7 +7,7 @@
 # Make the helper files in test/ importable
 pytorch_test_dir = os.path.dirname(os.path.dirname(os.path.realpath(__file__)))
 sys.path.append(pytorch_test_dir)
-from torch.testing._internal.jit_utils import JitTestCase, freeze_rng_state	
+from torch.testing._internal.jit_utils import JitTestCase, freeze_rng_state
 
 if __name__ == '__main__':
     raise RuntimeError("This test file is not meant to be run directly, use:\n\n"
@@ -154,7 +154,7 @@
         self.run_pass('remove_mutation', graph)
         FileCheck().check('aten::fill_').run(graph)
 
-        def normal(): 
+        def normal():
             return torch.rand(2, 1, 3, 4).normal_()
 
         fn = torch.jit.script(normal)