Follow class package change: LocaleList

In order to avoid layering violation, LocaleList needs to be moved from
android.util package to android.os package [1].  This CL follows up that
package change.

No behavior change is intended.

 [1]: Ia8de2ee9df3dd0a42b1fe84574439519b680fe18

Bug: 28819696
Change-Id: Ibd7934b30062046830d63f33d1c6febef32da976

src/com/android/settings/applications/ManageApplications.java

@@ -28,7 +28,6 @@ import android.os.*;
 import android.preference.PreferenceFrameLayout;
 import android.text.TextUtils;
 import android.util.ArraySet;
-import android.util.LocaleList;
 import android.util.Log;
 import android.view.LayoutInflater;
 import android.view.Menu;