Framework: Remove orphaned Theme related code

Change-Id: I930d4cc75e655c5bc37532e6a1425d27bd1ee661

Conflicts:
	services/java/com/android/server/NotificationManagerService.java

 Author:    DvTonder <david.vantonder@gmail.com>
 Changes to be committed:
	modified:   services/java/com/android/server/NotificationManagerService.java