Clear recents side switcher [2/2]

Conflicts:

	packages/SystemUI/res/layout-land/status_bar_recent_panel.xml
	packages/SystemUI/res/layout/status_bar_recent_panel.xml
	packages/SystemUI/src/com/android/systemui/recent/RecentsPanelView.java

Change-Id: I303a9bf92cb2768dda6f30574d2a19fed2a781f2