ALSA: HDA: Remove quirk for an HP device

The reporter, who is running kernel 2.6.38, reports that
he needs to set model=auto for the headphone output to work
correctly.

BugLink: http://bugs.launchpad.net/bugs/761022


Cc: stable@kernel.org (v2.6.38+)
Reported-by: Jo
Signed-off-by: David Henningsson <david.henningsson@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>