Revert "improve a calculation method for LTE antenna reception level"

This reverts commit 6bcf479873262c05d782da9083b4695639508011.

Change-Id: Ifcf9db19e906d75ee3d5c77efc2c3c8ba6d191b6
LockscreenTargets : Dismiss on target select

Only dismiss prior to activity launch for lockscreen shortcuts,
camera and appwidget picker remain untouched.

Change-Id: I2770c628ce0708570aa6ea0eac9e3cd1d82287fb