Revert "Lockscreen Notification (1/2)"

This reverts commit 6981e1bfbdd832443f7ef650fd370635154a8ea8.

Conflicts:
	packages/Keyguard/src/com/android/keyguard/NotificationViewManager.java

Change-Id: I234522fc57a7397b2ef2e01607e98744f9d37271