Move translations from admin.yml to general.yml

After extract translation interface partials from admin
folder translations should be placed in general.yml file
inside shared context.

config/locales/en/admin.yml

@@ -1630,10 +1630,6 @@ en:
         submit_header: Save header
         card_title: Edit card
         submit_card: Save card
-    translations:
-      select_language_prompt: "Choose language"
-      remove_language: Remove language
-      add_language: Add language
     change_log:
       title: "Change Log"
       id: "ID"

config/locales/es/admin.yml

@@ -1628,10 +1628,6 @@ es:
         submit_header: Guardar encabezado
         card_title: Editar tarjeta
         submit_card: Guardar tarjeta
-    translations:
-      select_language_prompt: "Seleccionar idioma"
-      remove_language: Eliminar idioma
-      add_language: Añadir idioma
     change_log:
       title: "Historial"
       id: "ID"