includecheck fix: include/linux, aio.h

fix the following 'make includecheck' warning:

  include/linux/aio.h: linux/aio_abi.h is included more than once.
Signed-off-by: NJaswinder Singh Rajput <jaswinderrajput@gmail.com>
Cc: bcrl@kvack.org
Cc: Sam Ravnborg <sam@ravnborg.org>
LKML-Reference: <1247068254.4382.101.camel@ht.satnam>

include/linux/aio.h

@@ -225,8 +225,6 @@ static inline void exit_aio(struct mm_struct *mm) { }
 
 #define io_wait_to_kiocb(wait) container_of(wait, struct kiocb, ki_wait)
 
-#include <linux/aio_abi.h>
-
 static inline struct kiocb *list_kiocb(struct list_head *h)
 {
 	return list_entry(h, struct kiocb, ki_list);