[Blocking CI] Fix pep8 error about unused imports (#9090)

pytorch_lightning/loops/dataloader/evaluation_loop.py

@@ -12,7 +12,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-from typing import Any, Iterator, List, Optional, Sequence, Union
+from typing import Any, List, Optional, Sequence, Union
 
 from deprecate.utils import void
 from torch.utils.data.dataloader import DataLoader

pytorch_lightning/loops/fit_loop.py

@@ -14,7 +14,7 @@
 
 import logging
 from contextlib import suppress
-from typing import Iterator, Optional
+from typing import Optional
 
 from pytorch_lightning.loops import Loop
 from pytorch_lightning.loops.epoch import TrainingEpochLoop