Remove redundant scope with_files_stored_locally

EE: true

ee/app/models/ee/merge_request_diff.rb

@@ -33,7 +33,6 @@ module EE
       scope :with_verification_state, ->(state) { joins(:merge_request_diff_detail).where(merge_request_diff_details: { verification_state: verification_state_value(state) }) }
       scope :checksummed, -> { joins(:merge_request_diff_detail).where.not(merge_request_diff_details: { verification_checksum: nil } ) }
       scope :not_checksummed, -> { joins(:merge_request_diff_detail).where(merge_request_diff_details: { verification_checksum: nil } ) }
-      scope :with_files_stored_locally, -> { where(klass::STORE_COLUMN => ::ObjectStorage::Store::LOCAL) }
 
       def verification_state_object
         merge_request_diff_detail