Revert "Revert "live555: Don't put any INT64_C related hack here. We need to fix that properly.""

This reverts commit b8d7dae4.

There was a reason for the removal of this hack. I introduced that hack while trying to fix that precise compile error, and decided that this fix was hiding a bigger problem. Would be nice to summon before reverting, that could prevent such mistake.

modules/demux/live555.cpp

@@ -59,14 +59,6 @@ extern "C" {
 #include "../access/mms/asf.h"  /* Who said ugly ? */
 }
 
-/* XXX Ugly workaround: Buggy Mac OS X headers fail to define them */
-#ifndef INT64_C
-# define INT64_C(v)   (v ## LL)
-#endif
-#ifndef UINT64_C
-# define UINT64_C(v)   (v ## ULL)
-#endif
-
 using namespace std;
 
 /*****************************************************************************