msm: gud: Remove gud driver

Complete removal of gud mobicore driver.
The driver author delivers an updated version of this driver to
interested parties directly rendering this version obsolete.

Change-Id: I40498d3203b1d6ca04f2b5a2e65461851d84d2d4
Acked-by: Tony Hamilton <tonyh@qti.qualcomm.com>
Signed-off-by: Trudy Shearer <tshearer@codeaurora.org>