remove unused strings from source

src/strings/af.json

@@ -36,7 +36,6 @@
     "AddToPlaylist": "Voeg by speellys",
     "AddToPlayQueue": "Plaas in wagtou",
     "AddToCollection": "Voeg by versameling",
-    "AddItemToCollectionHelp": "Voeg items by die versamelings deur hulle te soek en regs-kliek of kliek kieslys om hulle by versameling te voeg.",
     "Add": "Voeg by",
     "Actor": "Akteur",
     "AccessRestrictedTryAgainLater": "Toegang is beperk. Probeer weer later .",
@@ -84,7 +83,6 @@
     "Watched": "Gekyk",
     "ViewPlaybackInfo": "Beskou terugspeel inligting",
     "ViewAlbum": "Beskou album",
-    "VideoRange": "Video reekse",
     "Vertical": "Vertikaal",
     "ValueVideoCodec": "Video Kodek: {0}",
     "ValueTimeLimitSingleHour": "Tyd limiet: 1 uur",
@@ -149,7 +147,6 @@
     "TabProfiles": "Profiele",
     "TabProfile": "Profiel",
     "TabPlaylists": "Speel lyste",
-    "TabPlaylist": "Speel lys",
     "TabPlayback": "Terugspeel",
     "TabPassword": "Wagwoord",
     "TabParentalControl": "Ouer Beheer",