i9500: Remove Samsung IR feature

* There is a real IR HAL present in Android 4.4, we should use it.
* Squash of the following commits:

Revert "i9500: add sec IRDA feature config"

This reverts commit 17af2cfc9216dfb41e48630982ebe15596763f90.

Revert "i9500: add CM Samsung Galaxy S4 IR HAL"

This reverts commit d19285bdb54744c5d9c94dea789ed67e4c10079d.
i9500: translucent lockscreen decor

* We all know this is the real reason everyone wants kitkat.