a.out.h: why was this needed?

Signed-off-by: Peter S. Mazinger <ps.m@gmx.net>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

include/a.out.h

@@ -1,5 +1 @@
-#ifdef _LIBC
-# include_next <linux/a.out.h>
-#else
-# include <linux/a.out.h>
-#endif
+#include <linux/a.out.h>