update EE files to remove old storage logic

ee/lib/ee/gitlab/import_export/after_export_strategies/custom_template_export_import_strategy.rb

@@ -28,16 +28,12 @@ module EE
             ::RepositoryImportWorker.new.perform(export_into_project_id)
           ensure
             export_file.close if export_file.respond_to?(:close)
-            project.remove_exported_project_file
+            project.remove_exports
           end
 
           def export_file
             strong_memoize(:export_file) do
-              if object_storage?
-                project.import_export_upload.export_file&.file
-              else
-                File.open(project.export_project_path)
-              end
+              project.import_export_upload.export_file&.file
             end
           end
 

ee/spec/controllers/projects_controller_spec.rb

@@ -71,23 +71,8 @@ describe ProjectsController do
           stub_ee_application_setting(custom_project_templates_group_id: group.id)
         end
 
-        context 'old upload' do
-          before do
-            stub_feature_flags(import_export_object_storage: false)
-          end
-
-          it 'creates the project from project template' do
-            post :create, project: templates_params
-
-            created_project = Project.find_by_path('foo')
-            expect(flash[:notice]).to eq "Project 'foo' was successfully created."
-            expect(created_project.repository.empty?).to be false
-          end
-        end
-
         context 'object storage' do
           before do
-            stub_feature_flags(import_export_object_storage: true)
             stub_uploads_object_storage(FileUploader)
           end
 

ee/spec/lib/ee/gitlab/import_export/after_export_strategies/custom_template_export_import_strategy_spec.rb

@@ -42,7 +42,7 @@ describe EE::Gitlab::ImportExport::AfterExportStrategies::CustomTemplateExportIm
     end
 
     it 'removes the exported project file after the import' do
-      expect(project_template).to receive(:remove_exported_project_file)
+      expect(project_template).to receive(:remove_exports)
 
       subject.execute(user, project_template)
     end