Remove duplicated specs in update service spec

.rubocop.yml

@@ -409,5 +409,4 @@ RSpec/RepeatedExample:
     - 'spec/rubocop/cop/migration/update_large_table_spec.rb'
     - 'spec/services/notification_service_spec.rb'
     - 'spec/services/web_hook_service_spec.rb'
-    - 'ee/spec/services/boards/lists/update_service_spec.rb'
     - 'ee/spec/services/geo/repository_verification_primary_service_spec.rb'

changelogs/unreleased/refactor-service-spec.yml

+---
+title: Remove duplicate specs in update service spec
+merge_request: 28650
+author: Rajendra Kadam
+type: added

ee/spec/services/boards/lists/update_service_spec.rb

@@ -52,13 +52,6 @@ describe 'EE::Boards::Lists::UpdateService' do
         update_list_and_test_result(list, { max_issue_weight: 42 }, { max_issue_weight: 42 })
       end
 
-      it 'does not update the list if max_issue_count is nil' do
-        update_list_and_test_result(list,
-                                    { max_issue_count: nil },
-                                    { max_issue_count: 0 },
-                                    expected_service_result: :error)
-      end
-
       it 'does not update the list if max_issue_weight is nil' do
         update_list_and_test_result(list,
                                     { max_issue_weight: nil },