drm/i915: Drop GEN12_MC_CCS check from skl_plane_max_width()

I915_FORMAT_MOD_Y_TILED_GEN12_MC_CCS is tgl+ only, so checking for
it in skl_plane_max_width() (which only applies to pre-glk hardware)
is pointless.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240918144445.5716-7-ville.syrjala@linux.intel.com
Reviewed-by: Juha-Pekka Heikkila <juhapekka.heikkila@gmail.com>

Author: vsyrjala

drivers/gpu/drm/i915/display/skl_universal_plane.c

@@ -350,7 +350,6 @@ static int skl_plane_max_width(const struct drm_framebuffer *fb,
 			return 5120;
 	case I915_FORMAT_MOD_Y_TILED_CCS:
 	case I915_FORMAT_MOD_Yf_TILED_CCS:
-	case I915_FORMAT_MOD_Y_TILED_GEN12_MC_CCS:
 		/* FIXME AUX plane? */
 	case I915_FORMAT_MOD_Y_TILED:
 	case I915_FORMAT_MOD_Yf_TILED: