Clean strings

Author: TobiGr

app/src/main/res/values-tl/strings.xml

@@ -66,5 +66,4 @@
 \nBuksan ang \"%1$s\" sa ayos ng app kung gusto mong makita ito.</string>
     <string name="artists">Mga Artista</string>
     <string name="controls_popup_title">Nakalutang</string>
-    <string name="use_external_audio_player_title"></string>
 </resources>