Revert "Lockscreen Notifications 1/2"

This reverts commit 70dfe82bd0375c09591193ea204f36b9c80e3f7f.

Conflicts:
	packages/Keyguard/res/values/ck_dimens.xml

Change-Id: Ie9c4a9b0ac3313e9fb621023027ed999c2e1a426