drm/i915/gvt: remove redundant platform check for mocs load/restore

The platform check is done outside, no need check again. Platform doesn't
include mocs should not invoke this two functions.
Signed-off-by: Changbin Du <changbin.du@intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>

drivers/gpu/drm/i915/gvt/render.c

@@ -204,9 +204,6 @@ static void load_mocs(struct intel_vgpu *vgpu, int ring_id)
 	if (WARN_ON(ring_id >= ARRAY_SIZE(regs)))
 		return;
 
-	if (!(IS_SKYLAKE(dev_priv) || IS_KABYLAKE(dev_priv)))
-		return;
-
 	offset.reg = regs[ring_id];
 	for (i = 0; i < 64; i++) {
 		gen9_render_mocs[ring_id][i] = I915_READ(offset);
@@ -242,9 +239,6 @@ static void restore_mocs(struct intel_vgpu *vgpu, int ring_id)
 	if (WARN_ON(ring_id >= ARRAY_SIZE(regs)))
 		return;
 
-	if (!(IS_SKYLAKE(dev_priv) || IS_KABYLAKE(dev_priv)))
-		return;
-
 	offset.reg = regs[ring_id];
 	for (i = 0; i < 64; i++) {
 		vgpu_vreg(vgpu, offset) = I915_READ(offset);