Revert "doubletap2wake: Add user selected feather radius from savoca"

This reverts commit a68af11cff5f688ae571a954e8afe8fa88563e6f.
devfreq: ondemand: cleanup the driver

Just a few cleanups here and there to make it more
simpler to read.

Signed-off-by: Blechd0se <alex.christ@hotmail.de>