MAINTAINERS: Update vmwgfx maintainers

It's been fun! To be continued.....
Signed-off-by: Sinclair Yeh <syeh@vmware.com>
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>

MAINTAINERS

@@ -4781,10 +4781,8 @@ T:	git git://anongit.freedesktop.org/drm/drm-misc
 
 DRM DRIVER FOR VMWARE VIRTUAL GPU
 M:	"VMware Graphics" <linux-graphics-maintainer@vmware.com>
-M:	Sinclair Yeh <syeh@vmware.com>
 M:	Thomas Hellstrom <thellstrom@vmware.com>
 L:	dri-devel@lists.freedesktop.org
-T:	git git://people.freedesktop.org/~syeh/repos_linux
 T:	git git://people.freedesktop.org/~thomash/linux
 S:	Supported
 F:	drivers/gpu/drm/vmwgfx/