PYFMT lint grandfathered files 1 (#154261)

lint:
-  test/test_fake_tensor.py
-  test/test_flop_counter.py
- torch/_export/verifier.py

with same rules as other files, it was a night mare for me to update tests in one of the skipped files
with not being able to lint them locally like other files with lintrunner -a.
note that those file do have active dev and not old not touched files.

Pull Request resolved: https://github.com/pytorch/pytorch/pull/154261
Approved by: https://github.com/angelayi, https://github.com/Skylion007

test/distributed/test_c10d_nccl.py

@@ -3731,7 +3731,7 @@ class NcclProcessGroupWithDispatchedCollectivesTests(
     @parametrize("float8_dtype", [torch.float8_e4m3fn, torch.float8_e5m2])
     def test_allgather_float8(self, float8_dtype):
         device = torch.device(f"cuda:{self.rank:d}")
-        if not sm_is_or_higher_than(device, 9, 0):
+        if not sm_is_or_higher_than(device, 9, 0):  # noqa: F821
             self.skipTest("FP8 reduction support begins with sm90 capable devices")
         store = dist.FileStore(self.file_name, self.world_size)
         dist.init_process_group(