CM11 Themes: remove handleThemeConfigChanges

This was used by the T-Mobile theme chooser and is no longer
needed with the new chooser.

Change-Id: I035606ffe6cb3efc82a3a0ce79215509d8289503
Merge remote-tracking branch 'upstream/android-4.4' into android-4.4
Merge branch 'android-4.4' of https://github.com/beegee-tokyo/nameless_android_frameworks_base into android-4.4