Clean up feature flag for pipeline status in pipeline editor

This removes and cleans up the :pipeline_status_for_pipeline_editor
feature flag from the codebase.

app/assets/javascripts/pipeline_editor/components/header/pipeline_editor_header.vue

 <script>
-import glFeatureFlagsMixin from '~/vue_shared/mixins/gl_feature_flags_mixin';
 import PipelineStatus from './pipeline_status.vue';
 import ValidationSegment from './validation_segment.vue';
 
@@ -29,7 +28,6 @@ export default {
     PipelineStatus,
     ValidationSegment,
   },
-  mixins: [glFeatureFlagsMixin()],
   props: {
     ciConfigData: {
       type: Object,
@@ -42,7 +40,7 @@ export default {
   },
   computed: {
     showPipelineStatus() {
-      return this.glFeatures.pipelineStatusForPipelineEditor && !this.isNewCiConfigFile;
+      return !this.isNewCiConfigFile;
     },
     // make sure corners are rounded correctly depending on if
     // pipeline status is rendered

app/controllers/projects/ci/pipeline_editor_controller.rb

@@ -4,7 +4,6 @@ class Projects::Ci::PipelineEditorController < Projects::ApplicationController
   before_action :check_can_collaborate!
   before_action do
     push_frontend_feature_flag(:ci_config_merged_tab, @project, default_enabled: :yaml)
-    push_frontend_feature_flag(:pipeline_status_for_pipeline_editor, @project, default_enabled: :yaml)
     push_frontend_feature_flag(:pipeline_editor_empty_state_action, @project, default_enabled: :yaml)
     push_frontend_feature_flag(:pipeline_editor_branch_switcher, @project, default_enabled: :yaml)
   end

changelogs/unreleased/cleanup-pipeline-status-feature-flag.yml

+---
+title: Remove feature flag for pipeline status in pipeline editor
+merge_request: 60463
+author:
+type: other

config/feature_flags/development/pipeline_status_for_pipeline_editor.yml

----
-name: pipeline_status_for_pipeline_editor
-introduced_by_url: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/53797
-rollout_issue_url: https://gitlab.com/gitlab-org/gitlab/-/issues/321518
-milestone: '13.10'
-type: development
-group: group::pipeline authoring
-default_enabled: true

spec/frontend/pipeline_editor/components/header/pipeline_editor_header_spec.js

@@ -7,16 +7,10 @@ import { mockCiYml, mockLintResponse } from '../../mock_data';
 
 describe('Pipeline editor header', () => {
   let wrapper;
-  const mockProvide = {
-    glFeatures: {
-      pipelineStatusForPipelineEditor: true,
-    },
-  };
 
   const createComponent = ({ provide = {}, props = {} } = {}) => {
     wrapper = shallowMount(PipelineEditorHeader, {
       provide: {
-        ...mockProvide,
         ...provide,
       },
       propsData: {
@@ -56,18 +50,4 @@ describe('Pipeline editor header', () => {
       expect(findValidationSegment().exists()).toBe(true);
     });
   });
-
-  describe('with pipeline status feature flag off', () => {
-    beforeEach(() => {
-      createComponent({
-        provide: {
-          glFeatures: { pipelineStatusForPipelineEditor: false },
-        },
-      });
-    });
-
-    it('does not render the pipeline status', () => {
-      expect(findPipelineStatus().exists()).toBe(false);
-    });
-  });
 });