h264: drop unused NAL_FF_IGNORE

libavcodec/h264.c

@@ -926,8 +926,6 @@ static int decode_nal_units(H264Context *h, const uint8_t *buf, int buf_size)
         case NAL_SPS_EXT:
         case NAL_AUXILIARY_SLICE:
             break;
-        case NAL_FF_IGNORE:
-            break;
         default:
             av_log(avctx, AV_LOG_DEBUG, "Unknown NAL code: %d (%d bits)\n",
                    nal->type, nal->size_bits);

libavcodec/h264.h

@@ -124,7 +124,6 @@ enum {
     NAL_FILLER_DATA     = 12,
     NAL_SPS_EXT         = 13,
     NAL_AUXILIARY_SLICE = 19,
-    NAL_FF_IGNORE       = 0xff0f001,
 };
 
 /**