Quiet Hours (2/2) thanks cm

remove as well depreciated ontreeclick

Change-Id: Id61ced473589e1f4a6ca30e4d3302c01f7b91ae2

Conflicts:
	res/values/slim_strings.xml

 Author:    Lars Greiss <kufikugel@googlemail.com>
 Changes to be committed:
	new file:   res/layout/preference_time_range.xml
	modified:   res/values/slim_strings.xml
	new file:   res/xml/quiet_hours_settings.xml
	modified:   res/xml/slim_sound_settings.xml
	new file:   src/com/android/settings/slim/QuietHours.java
	new file:   src/com/android/settings/slim/TimeRangePreference.java