Revert "Lockscreen Notifications [1/2]"

This reverts commit e2c5e55333aa719dc2d3261457c0c83c0d70c9cd.

Conflicts:
	packages/Keyguard/res/layout-land/keyguard_host_view.xml
	packages/Keyguard/res/layout-port/keyguard_host_view.xml
	packages/Keyguard/src/com/android/keyguard/NotificationHostView.java