Remove :cluster_vulnerabilities feature flag

- remove any reference to the :cluster_vulnerabilities
  feature flag

Changelog: removed
EE: true

app/controllers/projects/cluster_agents_controller.rb

@@ -3,10 +3,6 @@
 class Projects::ClusterAgentsController < Projects::ApplicationController
   before_action :authorize_can_read_cluster_agent!
 
-  before_action do
-    push_frontend_feature_flag(:cluster_vulnerabilities, project, default_enabled: :yaml)
-  end
-
   feature_category :kubernetes_management
 
   def show

config/feature_flags/development/cluster_vulnerabilities.yml

----
-name: cluster_vulnerabilities
-introduced_by_url: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/73321
-rollout_issue_url: https://gitlab.com/gitlab-org/gitlab/-/issues/343917
-milestone: '14.5'
-type: development
-group: group::container security
-default_enabled: true

doc/user/clusters/agent/vulnerabilities.md

@@ -6,7 +6,7 @@ info: To determine the technical writer assigned to the Stage/Group associated w
 
 # Container vulnerability scanning **(ULTIMATE)**
 
-> [Introduced](https://gitlab.com/groups/gitlab-org/-/epics/6346) in GitLab 14.8 [with a flag](../../../administration/feature_flags.md) named `cluster_vulnerabilities`. Enabled by default.
+> [Introduced](https://gitlab.com/groups/gitlab-org/-/epics/6346) in GitLab 14.8.
 
 To view cluster vulnerabilities, you can view the [vulnerability report](../../application_security/vulnerabilities/index.md).
 You can also configure your agent so the vulnerabilities are displayed with other agent information in GitLab.

ee/app/assets/javascripts/clusters/agents/components/show.vue

@@ -17,9 +17,7 @@ export default {
   mixins: [glFeatureFlagMixin()],
   computed: {
     showSecurityTab() {
-      return (
-        this.glFeatures.kubernetesClusterVulnerabilities && this.glFeatures.clusterVulnerabilities
-      );
+      return this.glFeatures.kubernetesClusterVulnerabilities;
     },
   },
 };

ee/spec/frontend/clusters/agents/components/show_spec.js

 import { GlTab } from '@gitlab/ui';
 import { shallowMount } from '@vue/test-utils';
-import { nextTick } from 'vue';
 import { stubComponent } from 'helpers/stub_component';
 import { extendedWrapper } from 'helpers/vue_test_utils_helper';
 import ClusterAgentShow from 'ee/clusters/agents/components/show.vue';
@@ -16,7 +15,7 @@ describe('ClusterAgentShow', () => {
     template: `<div><slot name="ee-security-tab" clusterAgentId="${clusterAgentId}"></slot></div>`,
   });
 
-  const createWrapper = ({ glFeatures = {} } = {}) => {
+  const createWrapper = ({ glFeatures = { kubernetesClusterVulnerabilities: true } } = {}) => {
     wrapper = extendedWrapper(
       shallowMount(ClusterAgentShow, {
         provide: { glFeatures },
@@ -34,27 +33,27 @@ describe('ClusterAgentShow', () => {
     wrapper.destroy();
   });
 
-  describe('tab behavior', () => {
-    it.each`
-      title                                                                                                                      | glFeatures                                                                  | tabStatus
-      ${'does not display the tab when no glFeatures are available'}                                                             | ${{}}                                                                       | ${false}
-      ${'does not display the tab when only the "clusterVulnerabilities" flag is true'}                                          | ${{ clusterVulnerabilities: true }}                                         | ${false}
-      ${'does not display the tab when only the "kubernetesClusterVulnerabilities" flag is true'}                                | ${{ kubernetesClusterVulnerabilities: true }}                               | ${false}
-      ${'does display the tab when both the "kubernetesClusterVulnerabilities" flag and "clusterVulnerabilities" flag are true'} | ${{ clusterVulnerabilities: true, kubernetesClusterVulnerabilities: true }} | ${true}
-    `('$title', async ({ glFeatures, tabStatus }) => {
-      createWrapper({ glFeatures });
-      await nextTick();
-      expect(findTab().exists()).toBe(tabStatus);
-    });
+  describe('when a user does have permission', () => {
+    beforeEach(() => {
+      createWrapper();
     });
 
-  describe('vulnerability report', () => {
-    it('renders with cluster agent id', async () => {
-      createWrapper({
-        glFeatures: { clusterVulnerabilities: true, kubernetesClusterVulnerabilities: true },
+    it('does not display the tab', () => {
+      expect(findTab().exists()).toBe(true);
     });
-      await nextTick();
+
+    it('does display the cluster agent id', () => {
       expect(findAgentVulnerabilityReport().props('clusterAgentId')).toBe(clusterAgentId);
     });
   });
+
+  describe('without access', () => {
+    beforeEach(() => {
+      createWrapper({ glFeatures: { kubernetesClusterVulnerabilities: false } });
+    });
+
+    it('when a user does not have permission', () => {
+      expect(findTab().exists()).toBe(false);
+    });
+  });
 });