gdb_assert.h is already included from darwin-nat.h, so no need to
include it again...
gdb/ChangeLog:
        * amd64-darwin-tdep.c: Remove #include "gdb_assert.h".
+2013-05-06  Joel Brobecker  <brobecker@adacore.com>
+
+       * amd64-darwin-tdep.c: Remove #include "gdb_assert.h".
+
 2013-05-05  Jan Kratochvil  <jan.kratochvil@redhat.com>
 
        * cleanups.c (restore_my_cleanups): New gdb_assert for SENTINEL_CLEANUP.
 
 #include "ui-out.h"
 #include "symtab.h"
 #include "frame.h"
-#include "gdb_assert.h"
 #include "amd64-darwin-tdep.h"
 #include "i386-darwin-tdep.h"
 #include "solib.h"