Fix flake8 F401 imported but unused (#317)

* Fix flake8 F401 '...' imported but unused

* One more F403

setup.cfg

@@ -17,3 +17,4 @@ use_parentheses = True
 [flake8]
 ignore = E203, E722, E501, E741, W503, W605
 max-line-length = 119
+per-file-ignores = __init__.py:F401

src/diffusers/__init__.py

-# flake8: noqa
-# There's no way to ignore "F401 '...' imported but unused" warnings in this
-# module, but to preserve other warnings. So, don't check this module at all.
 from .utils import is_inflect_available, is_scipy_available, is_transformers_available, is_unidecode_available
 
 
@@ -32,7 +29,7 @@ from .schedulers import (
 if is_scipy_available():
     from .schedulers import LMSDiscreteScheduler
 else:
-    from .utils.dummy_scipy_objects import *
+    from .utils.dummy_scipy_objects import *  # noqa F403
 
 from .training_utils import EMAModel
 
@@ -45,4 +42,4 @@ if is_transformers_available():
         StableDiffusionPipeline,
     )
 else:
-    from .utils.dummy_transformers_objects import *
+    from .utils.dummy_transformers_objects import *  # noqa F403

src/diffusers/models/__init__.py

-# flake8: noqa
-# There's no way to ignore "F401 '...' imported but unused" warnings in this
-# module, but to preserve other warnings. So, don't check this module at all.
-
 # Copyright 2022 The HuggingFace Team. All rights reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");

src/diffusers/pipelines/__init__.py

-# flake8: noqa
-# There's no way to ignore "F401 '...' imported but unused" warnings in this
-# module, but to preserve other warnings. So, don't check this module at all.
-
 from ..utils import is_transformers_available
 from .ddim import DDIMPipeline
 from .ddpm import DDPMPipeline

src/diffusers/schedulers/__init__.py

-# flake8: noqa
-# There's no way to ignore "F401 '...' imported but unused" warnings in this
-# module, but to preserve other warnings. So, don't check this module at all.
-
 # Copyright 2022 The HuggingFace Team. All rights reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
@@ -29,4 +25,4 @@ from .scheduling_utils import SchedulerMixin
 if is_scipy_available():
     from .scheduling_lms_discrete import LMSDiscreteScheduler
 else:
-    from ..utils.dummy_scipy_objects import *
+    from ..utils.dummy_scipy_objects import *  # noqa F403

src/diffusers/utils/__init__.py

-# flake8: noqa
-# There's no way to ignore "F401 '...' imported but unused" warnings in this
-# module, but to preserve other warnings. So, don't check this module at all.
-
 # Copyright 2022 The HuggingFace Inc. team. All rights reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");