Revert "Include <stdint.h>"

This reverts commit 1fde70b.

Author: bzEq

src/util/posix.h

@@ -9,7 +9,6 @@
 
 #include "git2_util.h"
 
-#include <stdint.h>
 #include <stdlib.h>
 #include <fcntl.h>
 #include <time.h>
@@ -105,6 +104,8 @@ typedef __int64 off64_t;
 typedef __haiku_std_int64 off64_t;
 #elif defined(__APPLE__)
 typedef __int64_t off64_t;
+#elif defined(_AIX)
+typedef long long off64_t;
 #else
 typedef int64_t off64_t;
 #endif