Revert "Lockscreen: Add checkbox for quick unlock"

This is not the right place to add this checkbox
It will be added in CM lockscreen security settings

This reverts commit 486763fda36ef474dfb054bb7e327e7ed3fca614.

Change-Id: Ie725d51b34c023ce1ef30e7a7bb0ccd74d621148
Merge "Revert "Lockscreen: Add checkbox for quick unlock"" into cm-11.0
Merge remote-tracking branch 'cm/cm-11.0' into cm-11.0