Nuke duplicated lines

Author: ZG089

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

@@ -36,9 +36,6 @@
     <string name="pref_category_about">حول</string>
     <string name="pref_category_behavior">السلوك</string>
 
-    <string name="pref_wstxda" translatable="false">WSTxda</string>
-    <string name="pref_github" translatable="false">GitHub</string>
-
     <string name="pref_wstxda" translatable="false">WSTxda</string>
     <string name="pref_github" translatable="false">GitHub</string>
     <string name="pref_developer">المطور</string>