Revert "backlight: scale max current when the brightness level is below 15 instead of using always 0."

This reverts commit dcb174a6882e61eca7da1160b4515210054c298f.
Revert "backlight: add minimum backlight brightness module param."

This reverts commit 7356616ed86345dc4fb3cc37f896f80df59c28b3.
Revert "backlight: clean the code."

This reverts commit 5b440150a733cc096172105cca40533f87b22a26.
Revert "backlight: fix a bug where the screen would be completely dark or near darkness with backlight_dimmer enabled when the display dimmed. The brightness level can't be any lower than dev->min_brightness and previous code allowed that to happen, so fix it."

This reverts commit ba93a73b9c0ffdf005a75f1666fc749af62521f7.
Revert "video: backlight: enable backlight_dimmer by default. Auto-brightness looks great with this."

This reverts commit bd1965ba32b1fe97e665334369c44cb3dacd3d0a.
Revert "drivers: video: gradual transitions for backlight dimmer"

This reverts commit 0a0411c964be3fe8e3b3c75230e747d1958c8126.
Revert "drivers: video: Add backlight dimmer option"

This reverts commit 990eb3401db02d8ea549b4285b171654d4ecffb5.
Fix derps in Ondemand Governor