Fix several imports (#7712)

Fix imports

src/diffusers/pipelines/stable_diffusion/__init__.py

@@ -113,7 +113,6 @@ if TYPE_CHECKING or DIFFUSERS_SLOW_IMPORT:
         from .pipeline_stable_diffusion import (
             StableDiffusionPipeline,
             StableDiffusionPipelineOutput,
-            StableDiffusionSafetyChecker,
         )
         from .pipeline_stable_diffusion_img2img import StableDiffusionImg2ImgPipeline
         from .pipeline_stable_diffusion_inpaint import StableDiffusionInpaintPipeline

src/diffusers/schedulers/deprecated/__init__.py

@@ -30,7 +30,7 @@ if TYPE_CHECKING or DIFFUSERS_SLOW_IMPORT:
             raise OptionalDependencyNotAvailable()
 
     except OptionalDependencyNotAvailable:
-        from ..utils.dummy_pt_objects import *  # noqa F403
+        from ...utils.dummy_pt_objects import *  # noqa F403
     else:
         from .scheduling_karras_ve import KarrasVeScheduler
         from .scheduling_sde_vp import ScoreSdeVpScheduler