[#58520] satisfy rubocop and broken legacy test

app/models/queries/custom_fields/hierarchy/item_query.rb

@@ -36,10 +36,6 @@ class ItemQuery
         def self.model
           CustomField::Hierarchy::Item
         end
-
-        def default_scope
-          super
-        end
       end
     end
   end

lib/api/errors/unprocessable_content.rb

@@ -31,10 +31,6 @@ module Errors
     class UnprocessableContent < ErrorBase
       identifier "UnprocessableContent"
       code 422
-
-      def initialize(message)
-        super(message)
-      end
     end
   end
 end

spec/lib/api/v3/utilities/resource_link_generator_spec.rb

@@ -55,7 +55,7 @@
     end
 
     it "returns nil for unsupported records" do
-      record = create(:custom_field)
+      record = create(:oauth_client_token)
       expect(subject.make_link(record)).to be_nil
     end