avcodec/mv30: Don't check for errors for complete VLCs

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>

libavcodec/mv30.c

@@ -379,9 +379,6 @@ static int decode_coeffs(GetBitContext *gb, int16_t *coeffs, int nb_codes)
     for (int i = 0; i < nb_codes;) {
         int value = get_vlc2(gb, cbp_tab.table, cbp_tab.bits, 1);
 
-        if (value < 0)
-            return AVERROR_INVALIDDATA;
-
         if (value > 0) {
             int x = get_bits(gb, value);