[MM-10645] Remove desktop duration notify props (#8851)

* remove desktop duration notify props

Signed-off-by: Saturnino Abril <saturnino.abril@gmail.com>

* fix test

Signed-off-by: Saturnino Abril <saturnino.abril@gmail.com>

i18n/en.json

@@ -3718,10 +3718,6 @@
     "id": "app.import.validate_user_import_data.notify_props_comment_trigger_invalid.error",
     "translation": "Invalid Comment Trigger Notify Prop for user."
   },
-  {
-    "id": "app.import.validate_user_import_data.notify_props_desktop_duration_invalid.error",
-    "translation": "Invalid Desktop Duration Notify Prop value for user."
-  },
   {
     "id": "app.import.validate_user_import_data.notify_props_desktop_invalid.error",
     "translation": "Invalid Desktop Notify Prop value for user."