[Cloud Security][D4C] Hide K8S (elastic#201062)

## Summary

This PR is to hide K8S so User won't be able to access K8S Dashboard via
navigating to it from the page or by direct URL,
also deleting Cypress tests related to this

---------

Co-authored-by: kibanamachine <42973632+kibanamachine@users.noreply.github.com>

x-pack/plugins/security_solution/common/experimental_features.ts

@@ -15,7 +15,7 @@ export const allowedExperimentalValues = Object.freeze({
   // FIXME:PT delete?
   excludePoliciesInFilterEnabled: false,
 
-  kubernetesEnabled: true,
+  kubernetesEnabled: false,
   donutChartEmbeddablesEnabled: false, // Depends on https://github.com/elastic/kibana/issues/136409 item 2 - 6
 
   /**

x-pack/plugins/security_solution/public/kubernetes/routes.tsx

@@ -7,6 +7,7 @@
 
 import React from 'react';
 import { TrackApplicationView } from '@kbn/usage-collection-plugin/public';
+import { allowedExperimentalValues } from '../../common';
 import { KubernetesContainer } from './pages';
 
 import type { SecuritySubPluginRoutes } from '../app/types';
@@ -24,7 +25,7 @@ export const KubernetesRoutes = () => (
 
 export const routes: SecuritySubPluginRoutes = [
   {
-    path: KUBERNETES_PATH,
+    path: allowedExperimentalValues.kubernetesEnabled ? KUBERNETES_PATH : [],
     component: KubernetesRoutes,
   },
 ];

x-pack/test/security_solution_cypress/cypress/e2e/explore/navigation/navigation.cy.ts

@@ -21,7 +21,6 @@ import {
   DETECTION_RESPONSE,
   DASHBOARDS,
   CSP_DASHBOARD,
-  KUBERNETES,
   INDICATORS,
   BLOCKLIST,
   CSP_BENCHMARKS,
@@ -54,7 +53,6 @@ import {
   EXPLORE_URL,
   MANAGE_URL,
   CSP_DASHBOARD_URL,
-  KUBERNETES_URL,
   BLOCKLIST_URL,
   CSP_BENCHMARKS_URL,
   CSP_FINDINGS_URL,
@@ -114,11 +112,6 @@ describe('top-level navigation common to all pages in the Security app', { tags:
     cy.url().should('include', ENTITY_ANALYTICS_URL);
   });
 
-  it('navigates to the Kubernetes page', () => {
-    navigateFromHeaderTo(KUBERNETES);
-    cy.url().should('include', KUBERNETES_URL);
-  });
-
   it('navigates to the CSP dashboard page', () => {
     navigateFromHeaderTo(CSP_DASHBOARD);
     cy.url().should('include', CSP_DASHBOARD_URL);
@@ -289,11 +282,6 @@ describe('Serverless side navigation links', { tags: '@serverless' }, () => {
     cy.url().should('include', ENTITY_ANALYTICS_URL);
   });
 
-  it('navigates to the Kubernetes page', () => {
-    navigateFromHeaderTo(ServerlessHeaders.KUBERNETES, true);
-    cy.url().should('include', KUBERNETES_URL);
-  });
-
   it('navigates to the CSP dashboard page', () => {
     navigateFromHeaderTo(ServerlessHeaders.CSP_DASHBOARD, true);
     cy.url().should('include', CSP_DASHBOARD_URL);