(code quality) run ruff rule to ban unused imports (#7313)

* remove unused imports

* fix AmazonConverseConfig

* fix test

* fix import

* ruff check fixes

* test fixes

* fix testing

* fix imports

litellm/proxy/litellm_pre_call_utils.py

@@ -12,12 +12,10 @@ from litellm.proxy._types import (
     AddTeamCallback,
     CommonProxyErrors,
     LitellmDataForBackendLLMCall,
-    LiteLLMRoutes,
     SpecialHeaders,
     TeamCallbackMetadata,
     UserAPIKeyAuth,
 )
-from litellm.proxy.auth.auth_utils import get_request_route
 from litellm.types.services import ServiceTypes
 from litellm.types.utils import (
     StandardLoggingUserAPIKeyMetadata,
@@ -214,9 +212,6 @@ class LiteLLMProxyRequestSetup:
         - Checks request headers for forwardable headers
         - Checks if user information should be added to the headers
         """
-        from litellm.litellm_core_utils.litellm_logging import (
-            get_standard_logging_metadata,
-        )
 
         returned_headers = LiteLLMProxyRequestSetup._get_forwardable_headers(headers)