Promote Favorites tab to stable.

app/src/main/java/com/github/apognu/otter/adapters/BrowseTabsAdapter.kt

@@ -8,16 +8,12 @@ import com.github.apognu.otter.fragments.AlbumsGridFragment
 import com.github.apognu.otter.fragments.ArtistsFragment
 import com.github.apognu.otter.fragments.FavoritesFragment
 import com.github.apognu.otter.fragments.PlaylistsFragment
-import com.preference.PowerPreference
 
 class BrowseTabsAdapter(val context: Fragment, manager: FragmentManager) : FragmentPagerAdapter(manager, BEHAVIOR_RESUME_ONLY_CURRENT_FRAGMENT) {
   var tabs = mutableListOf<Fragment>()
 
   override fun getCount(): Int {
-    return when (PowerPreference.getDefaultFile().getBoolean("experiments", false)) {
-      true -> 4
-      false -> 3
-    }
+    return 4
   }
 
   override fun getItem(position: Int): Fragment {