Fixing building by gcc-4.7.
diff --git a/src/http/modules/ngx_http_mp4_module.c b/src/http/modules/ngx_http_mp4_module.c
index fc21ec4..c7319f6 100644
--- a/src/http/modules/ngx_http_mp4_module.c
+++ b/src/http/modules/ngx_http_mp4_module.c
@@ -1702,7 +1702,6 @@
 {
     u_char               *atom_header, *atom_table;
     size_t                atom_size;
-    uint32_t              entries;
     ngx_buf_t            *atom;
     ngx_mp4_stsd_atom_t  *stsd_atom;
     ngx_http_mp4_trak_t  *trak;
@@ -1718,8 +1717,6 @@
     ngx_mp4_set_32value(stsd_atom->size, atom_size);
     ngx_mp4_set_atom_name(stsd_atom, 's', 't', 's', 'd');
 
-    entries = ngx_mp4_get_32value(stsd_atom->entries);
-
     if ((uint64_t) (sizeof(ngx_mp4_stsd_atom_t) - sizeof(ngx_mp4_atom_header_t))
          > atom_data_size) {
         ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0,