latm_parser: remove dead store

Signed-off-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

libavcodec/latm_parser.c

@@ -50,7 +50,6 @@ static int latm_find_frame_end(AVCodecParserContext *s1, const uint8_t *buf,
     pic_found = pc->frame_start_found;
     state     = pc->state;
 
-    i = 0;
     if (!pic_found) {
         for (i = 0; i < buf_size; i++) {
             state = (state<<8) | buf[i];