Issue 6532 - Removes required subscription title input field

locale/kab/desktop-options.json

 {
   "options_acceptableAds_ads_label": {
     "message": "Sireg adellel yettwaqbalen"
   },
   "options_acceptableAds_header": {
     "message": "Adell yettwaqbalen"
   },
   "options_close": {
     "message": "mdel"
   },
@@ skipping 41 matching lines @@
         "example": "2.6.7"
       }
     }
   },
   "options_dialog_import_subscription_location": {
     "message": "URL n tebdart n imsizdigen"
   },
   "options_dialog_import_subscription_location_error": {
     "message": "Sekcem URL tameɣtut"
   },
-  "options_dialog_import_subscription_title": {
-    "message": "Isem n tebdart n imsizdigen"
-  },
   "options_dialog_import_title": {
     "message": "Rnu tabdart n imsizdigen"
   },
   "options_dialog_language_other_empty": {
     "message": "Ulac tutlayin."
   },
   "options_dialog_language_title": {
     "message": "Fren tutlayt"
   },
   "options_dialog_predefined_confirm": {
@@ skipping 122 matching lines @@
   "options_whitelist_placeholder_example": {
     "message": "m.d. $domain$",
     "placeholders": {
       "domain": {
         "content": "$1",
         "example": "www.example.com"
       }
     }
   }
 }