xf86-video-sis: Changes to 'master'

[Emil Velikov]

 src/sis.h        |    4 -
 src/sis_dri.c    |  161 -------------------------------------------------------
 src/sis_dri.h    |    5 -
 src/sis_driver.c |   10 ---
 4 files changed, 3 insertions(+), 177 deletions(-)

New commits:
commit a50b2b3412dd8e7f3916acb142c942e85ffcb3e5
Author: Emil Velikov <emil.velikov at collabora.com>
Date:   Mon Jul 17 12:01:57 2017 +0100

    xf86-video-sis: remove the GlxSetVisualConfigs stub and friends
    
    The function was an empty since 2008 at least. Remove it alongside the
    unused GLX visuals code.
    
    With this all the GL/GLX dependencies in the driver are gone.
    
    Cc: Connor Behan <connor.behan at gmail.com>
    Cc: Thomas Klausner <wiz at NetBSD.org>
    Signed-off-by: Emil Velikov <emil.velikov at collabora.com>