remove links to other clients

Each client should have its own default list of subs, creating its own userbase and culture. This way, they can be interoperable with other clients without contaminating their own environment.

public/translations/de/default.json

@@ -122,7 +122,6 @@
   "invalid_url": "Ungültige URL",
   "no_link_provided": "Kein Link angegeben",
   "image_search": "Bildersuche",
-  "view_on": "anzeigen auf",
   "copy_link": "Link kopieren",
   "hide_post": "Beitrag ausblenden",
   "hide_thread": "Thread ausblenden",
@@ -131,7 +130,6 @@
   "search_image_on_google": "Bild auf Google suchen",
   "search_image_on_yandex": "Bild auf Yandex suchen",
   "search_image_on_saucenao": "Bild auf SauceNAO suchen",
-  "view_on_client": "Anzeigen auf {{client}}",
   "expand_all_settings": "Alle Einstellungen erweitern",
   "collapse_all_settings": "Alle Einstellungen reduzieren",
   "refresh": "Aktualisieren",