tools/target_dec_fuzzer: Remove FuzzerInterface.h dependancy

The header is not always available in the docker build environment

Suggested-by: Kostya Serebryany
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

tools/target_dec_fuzzer.c

@@ -54,7 +54,7 @@
 #include "libavcodec/bytestream.h"
 #include "libavformat/avformat.h"
 
-#include <FuzzerInterface.h>
+int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size);
 
 static void error(const char *err)
 {