Remove unused translatable strings (#12643)

* Remove unused “salmon_url” string

* Remove more unused translatable strings

The following strings all used to be on the admin account page
but aren't used anymore: profile_url, outbox_url, followers_url, feed_url

config/locales/ms.yml

@@ -73,9 +73,7 @@ ms:
       email_status: Status Emel
       enable: Bolehkan
       enabled: Dibolehkan
-      feed_url: Suapan URL
       followers: Pengikut
-      followers_url: URL Pengikut
       follows: Mengikuti
       inbox_url: URL mesej masuk
       ip: Alamat IP
@@ -97,9 +95,7 @@ ms:
       most_recent_ip: IP terbaru
       no_limits_imposed: Tiada had dikuatkuasakan
       not_subscribed: Tiada langganan
-      outbox_url: URL mesej keluar
       perform_full_suspension: Gantung
-      profile_url: URL profil
       promote: Naikkan pangkat
       protocol: Protokol
       public: Awam
@@ -119,7 +115,6 @@ ms:
         moderator: Pengawal
         staff: Kakitangan
         user: Pengguna
-      salmon_url: URL Salmon
       search: Cari
       shared_inbox_url: URL Peti Masuk Berkongsi
       show: