xorg/vmwgfx: Kill this target. It's not used anymore.

xorg/vmwgfx: Kill this target. It's not used anymore.

This fixes a build error introduced with commit
"winsys/svga: Update to vmwgfx kernel module 2.1"
if both the svga driver and the xorg state tracker was enabled
at the same time.

If needed we can re-add a minimal target for basic functionality.

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>