Remove gamma control
* This prevented the kernel to boot.

Revert "Gamma Control: Final bolts"

This reverts commit b8153dedfde7d42b060f7932c298f98f5a6e9560.

Revert "Display Gamma: Trial 1"

This reverts commit c34198de0b6412e707fc594e1a29f705f8d97cfd.