UBUNTU: SAUCE: Revert: "dell-laptop: Toggle the unsupported hardware killswitch"

UBUNTU: SAUCE: Revert: "dell-laptop: Toggle the unsupported hardware killswitch"

This reverts commit a3d77411e8b2ad661958c1fbee65beb476ec6d70,

as it causes a mess in the wireless rfkill status on some models.
It is probably a bad idea to toggle the rfkill for all dell models
without the respect to the claim that it is hardware-controlled.

BugLink: http://bugs.launchpad.net/bugs/775281

Signed-off-by: Keng-Yu Lin <kengyu@canonical.com>
Acked-by: Leann Ogasawara <leann.ogasawara@canonical.com>
Signed-off-by: Tim Gardner <tim.gardner@canonical.com>