Admin: Remove navigation subheaders (#61344)

* Admin: Remove navigation subheaders

* Admin: Fix tests

public/app/core/components/NavBar/navBarItem-translations.ts

@@ -71,12 +71,6 @@ export function getNavTitle(navId: string | undefined) {
       return config.featureToggles.topnav
         ? t('nav.config.title', 'Administration')
         : t('nav.config.titleBeforeTopnav', 'Configuration');
-    case 'admin/general':
-      return t('nav.admin-general.title', 'General');
-    case 'admin/plugins':
-      return t('nav.admin-plugins.title', 'Plugins and data');
-    case 'admin/access':
-      return t('nav.admin-access.title', 'Users and access');
     case 'datasources':
       return t('nav.datasources.title', 'Data sources');
     case 'correlations':

public/locales/de-DE/grafana.json

@@ -128,15 +128,6 @@
       "subtitle": "Serverweite Einstellungen und Zugriff auf Ressourcen wie Organisationen, Benutzer und Lizenzen verwalten",
       "title": "Server-Administrator"
     },
-    "admin-access": {
-      "title": "Benutzer und Zugriff"
-    },
-    "admin-general": {
-      "title": "Allgemein"
-    },
-    "admin-plugins": {
-      "title": "Plugins und Daten"
-    },
     "alerting": {
       "subtitle": "Informiere dich über Probleme in deinen Systemen kurz nach deren Auftreten",
       "title": "Meldungen"

public/locales/en-US/grafana.json

@@ -128,15 +128,6 @@
       "subtitle": "Manage server-wide settings and access to resources such as organizations, users, and licenses",
       "title": "Server admin"
     },
-    "admin-access": {
-      "title": "Users and access"
-    },
-    "admin-general": {
-      "title": "General"
-    },
-    "admin-plugins": {
-      "title": "Plugins and data"
-    },
     "alerting": {
       "subtitle": "Learn about problems in your systems moments after they occur",
       "title": "Alerting"

public/locales/es-ES/grafana.json

@@ -128,15 +128,6 @@
       "subtitle": "Administrar la configuración de todo el servidor y el acceso a recursos como organizaciones, usuarios y licencias",
       "title": "Administrador del servidor"
     },
-    "admin-access": {
-      "title": "Usuarios y acceso"
-    },
-    "admin-general": {
-      "title": "General"
-    },
-    "admin-plugins": {
-      "title": "Complementos y datos"
-    },
     "alerting": {
       "subtitle": "Conozca los problemas de sus sistemas justo después de que se produzcan",
       "title": "Alertas"

public/locales/fr-FR/grafana.json

@@ -128,15 +128,6 @@
       "subtitle": "Gérer les paramètres à l'échelle du serveur et l'accès aux ressources telles que les organisations, les utilisateurs et les licences",
       "title": "Administrateur de serveur"
     },
-    "admin-access": {
-      "title": "Utilisateurs et droits d'accès"
-    },
-    "admin-general": {
-      "title": "Général"
-    },
-    "admin-plugins": {
-      "title": "Modules complémentaires et données"
-    },
     "alerting": {
       "subtitle": "En savoir plus sur les problèmes dans vos systèmes quelques instants après qu'ils se produisent",
       "title": "Alertes"

public/locales/pseudo-LOCALE/grafana.json

@@ -128,15 +128,6 @@
       "subtitle": "Mäʼnäģę şęřvęř-ŵįđę şęŧŧįʼnģş äʼnđ äččęşş ŧő řęşőūřčęş şūčĥ äş őřģäʼnįžäŧįőʼnş, ūşęřş, äʼnđ ľįčęʼnşęş",
       "title": "Ŝęřvęř äđmįʼn"
     },
-    "admin-access": {
-      "title": "Ůşęřş äʼnđ äččęşş"
-    },
-    "admin-general": {
-      "title": "Ğęʼnęřäľ"
-    },
-    "admin-plugins": {
-      "title": "Pľūģįʼnş äʼnđ đäŧä"
-    },
     "alerting": {
       "subtitle": "Ŀęäřʼn äþőūŧ přőþľęmş įʼn yőūř şyşŧęmş mőmęʼnŧş äƒŧęř ŧĥęy őččūř",
       "title": "Åľęřŧįʼnģ"

public/locales/zh-Hans/grafana.json

@@ -128,15 +128,6 @@
       "subtitle": "管理整个服务器范围的设置，以及对组织、用户和许可证等资源的访问权限",
       "title": "服务器管理员"
     },
-    "admin-access": {
-      "title": ""
-    },
-    "admin-general": {
-      "title": ""
-    },
-    "admin-plugins": {
-      "title": ""
-    },
     "alerting": {
       "subtitle": "在系统发生问题后立即获悉",
       "title": "警报"