nutdec: Remove unused and broken debug function stub

libavformat/nutdec.c

@@ -96,18 +96,8 @@ static inline int64_t get_s_trace(AVIOContext *bc, const char *file,
     return v;
 }
 
-static inline uint64_t get_vb_trace(AVIOContext *bc, char *file,
-                                    char *func, int line)
-{
-    uint64_t v = get_vb(bc);
-
-    av_log(NULL, AV_LOG_DEBUG, "get_vb %5"PRId64" / %"PRIX64" in %s %s:%d\n",
-           v, v, file, func, line);
-    return v;
-}
 #define ffio_read_varlen(bc) get_v_trace(bc,  __FILE__, __PRETTY_FUNCTION__, __LINE__)
 #define get_s(bc)            get_s_trace(bc,  __FILE__, __PRETTY_FUNCTION__, __LINE__)
-#define get_vb(bc)           get_vb_trace(bc, __FILE__, __PRETTY_FUNCTION__, __LINE__)
 #endif
 
 static int get_packetheader(NUTContext *nut, AVIOContext *bc,