Removing UserManagerCompat wrapper for getting baded label

This removes some crass dependency on Launcher compat implementation
making it easier to move iconCache to a separate library

Change-Id: If5fab0c82d98089cde6f54b6a374fb7bb2db5ae8

src/com/android/launcher3/compat/UserManagerCompat.java

@@ -57,7 +57,6 @@ public abstract class UserManagerCompat {
     public abstract List<UserHandle> getUserProfiles();
     public abstract long getSerialNumberForUser(UserHandle user);
     public abstract UserHandle getUserForSerialNumber(long serialNumber);
-    public abstract CharSequence getBadgedLabelForUser(CharSequence label, UserHandle user);
     public abstract boolean isQuietModeEnabled(UserHandle user);
     public abstract boolean isUserUnlocked(UserHandle user);