Remove possible leak in AudioGroup.cpp

Change-Id: I4d1c16d91fe069ff9cbdc6b4f33651ee5e57fd2d
Signed-off-by: You Kim <you.kim72@gmail.com>
Fixed a leaked partial wakelock in AbstractThreadedSyncAdapter.

This fix ensures that onFinished() is always called in a syncClient
even if the application lacks the READ_SYNC_SETTINGS permission.

Change-Id: I944717e71ceae06a665f8a3b1199b41d73e12da4