Remove configuration auto enable. (#22625)

* Remove configuration auto enable.

* i18n

* Fix diff tests.

server/i18n/en.json

@@ -6043,10 +6043,6 @@
     "id": "app.plugin.not_installed.app_error",
     "translation": "Plugin is not installed."
   },
-  {
-    "id": "app.plugin.product_mode.app_error",
-    "translation": "Plugin {{.Name}} cannot be enabled in product mode."
-  },
   {
     "id": "app.plugin.remove.app_error",
     "translation": "Unable to delete plugin."