Revert "Lockscreen blur and blur radius (1/2)"

This reverts commit 01004cc89d2a56767e66868682b9d2d646ef2806.

Conflicts:
	core/java/android/provider/Settings.java

When lock screen blur is enabled,regular wallpaper flashes after unlocking phone.
This thing really got on my nerves.Tried to fix ot but no use.