ui: Completely remove the Overview routes when running the UI in HCP (#14606)

.changelog/14606.txt

@@ -0,0 +1,3 @@
+```release-note:bug
+ui: Removed Overview page from HCP instalations
+```

ui/packages/consul-hcp/vendor/consul-hcp/routes.js

@@ -1,8 +1,6 @@
 (routes => routes({
   dc: {
-    show: {
-      license: null,
-    },
+    show: null
   },
 }))(
   (json, data = (typeof document !== 'undefined' ? document.currentScript.dataset : module.exports)) => {

ui/packages/consul-ui/app/abilities/overview.js

@@ -1,9 +1,12 @@
 import BaseAbility from './base';
+import { inject as service } from '@ember/service';
 
 export default class OverviewAbility extends BaseAbility {
+  @service('env') env;
+
   resource = 'operator';
   segmented = false;
   get canAccess() {
-    return this.canRead;
+    return !this.env.var('CONSUL_HCP_ENABLED') && this.canRead;
   }
 }

ui/packages/consul-ui/app/utils/get-environment.js

@@ -128,6 +128,10 @@ export default function(config = {}, win = window, doc = document) {
         return typeof operatorConfig.PeeringEnabled === 'undefined'
           ? false
           : operatorConfig.PeeringEnabled;
+      case 'CONSUL_HCP_ENABLED':
+        return typeof operatorConfig.HCPEnabled === 'undefined'
+          ? false
+          : operatorConfig.HCPEnabled;
       case 'CONSUL_DATACENTER_LOCAL':
         return operatorConfig.LocalDatacenter;
       case 'CONSUL_DATACENTER_PRIMARY':
@@ -226,6 +230,9 @@ export default function(config = {}, win = window, doc = document) {
             case 'CONSUL_PEERINGS_ENABLE':
               prev['CONSUL_PEERINGS_ENABLED'] = !!JSON.parse(String(value).toLowerCase());
               break;
+            case 'CONSUL_HCP_ENABLE':
+              prev['CONSUL_HCP_ENABLED'] = !!JSON.parse(String(value).toLowerCase());
+              break;
             case 'CONSUL_UI_CONFIG':
               prev['CONSUL_UI_CONFIG'] = JSON.parse(value);
               break;
@@ -275,6 +282,7 @@ export default function(config = {}, win = window, doc = document) {
       case 'CONSUL_ACLS_ENABLED':
       case 'CONSUL_NSPACES_ENABLED':
       case 'CONSUL_PEERINGS_ENABLED':
+      case 'CONSUL_HCP_ENABLED':
       case 'CONSUL_SSO_ENABLED':
       case 'CONSUL_PARTITIONS_ENABLED':
       case 'CONSUL_METRICS_PROVIDER':