Linting post rebasing onto master

Author: dlzhry2nhs

backend/src/controller/fhir_api_exception_handler.py

@@ -9,9 +9,9 @@
 from controller.aws_apig_response_utils import create_response
 from models.errors import (
     Code,
-    InvalidImmunizationId,
     CustomValidationError,
     IdentifierDuplicationError,
+    InvalidImmunizationId,
     InvalidJsonError,
     ResourceNotFoundError,
     Severity,

backend/src/controller/fhir_controller.py

@@ -26,7 +26,6 @@
     Severity,
     UnauthorizedError,
     UnauthorizedVaxError,
-    UnhandledResponseError,
     ValidationError,
     create_operation_outcome,
 )