Remove no longer used enterprise string to fix build. (#10600)

i18n/en.json

@@ -3590,10 +3590,6 @@
     "id": "ent.elasticsearch.search_posts.unmarshall_post_failed",
     "translation": "Failed to decode search results"
   },
-  {
-    "id": "ent.elasticsearch.search_users.disabled",
-    "translation": "Elasticsearch searching is disabled on this server"
-  },
   {
     "id": "ent.elasticsearch.search_users.search_failed",
     "translation": "Search failed to complete"