drm/i915/gvt: remove obsolete code for old kvmgt opregion

Current GVT contains some obsolete logic originally cooked to
support the old, non-vfio kvmgt, which is actually workarounds.
We don't support that anymore, so it's safe to remove it and
make a better framework.

Signed-off-by: Jike Song <jike.song@intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
diff --git a/drivers/gpu/drm/i915/gvt/cfg_space.c b/drivers/gpu/drm/i915/gvt/cfg_space.c
index 4c68774..865629a 100644
--- a/drivers/gpu/drm/i915/gvt/cfg_space.c
+++ b/drivers/gpu/drm/i915/gvt/cfg_space.c
@@ -82,9 +82,8 @@ static int map_aperture(struct intel_vgpu *vgpu, bool map)
 
 	ret = intel_gvt_hypervisor_map_gfn_to_mfn(vgpu, first_gfn,
 						  first_mfn,
-						  vgpu_aperture_sz(vgpu)
-						  >> PAGE_SHIFT, map,
-						  GVT_MAP_APERTURE);
+						  vgpu_aperture_sz(vgpu) >>
+						  PAGE_SHIFT, map);
 	if (ret)
 		return ret;