Removing unused vp9_get_pred_flag_mbskip() function.

Change-Id: Ib46a97d8ff9f2915b9fa2abba3cd18b6711fcb0c

vp9/common/vp9_pred_common.h

@@ -55,10 +55,6 @@ static INLINE vp9_prob vp9_get_pred_prob_mbskip(const VP9_COMMON *cm,
   return cm->fc.mbskip_probs[vp9_get_pred_context_mbskip(xd)];
 }
 
-static INLINE unsigned char vp9_get_pred_flag_mbskip(const MACROBLOCKD *xd) {
-  return xd->mi_8x8[0]->mbmi.skip_coeff;
-}
-
 int vp9_get_pred_context_switchable_interp(const MACROBLOCKD *xd);
 
 int vp9_get_intra_inter_context(const MACROBLOCKD *xd);