staging: lustre: uapi: cleanup headers for lustre_ioctl.h

With the cleanups we no longer need to drag in tons of
user land headers. Lets simplify the include headers.

Signed-off-by: James Simmons <uja.ornl@yahoo.com>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-6401
Reviewed-on: https://review.whamcloud.com/24568
Reviewed-by: Andreas Dilger <andreas.dilger@intel.com>
Reviewed-by: Ben Evans <bevans@cray.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>
Signed-off-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/lustre/include/uapi/linux/lustre/lustre_ioctl.h

@@ -28,19 +28,11 @@
 #ifndef LUSTRE_IOCTL_H_
 #define LUSTRE_IOCTL_H_
 
+#include <linux/ioctl.h>
 #include <linux/kernel.h>
 #include <linux/types.h>
 #include "../../../../lustre/include/lustre/lustre_idl.h"
 
-#ifdef __KERNEL__
-# include <linux/ioctl.h>
-# include <linux/string.h>
-#else /* __KERNEL__ */
-# include <malloc.h>
-# include <string.h>
-#include <libcfs/util/ioctl.h>
-#endif /* !__KERNEL__ */
-
 #if !defined(__KERNEL__) && !defined(LUSTRE_UTILS)
 # error This file is for Lustre internal use only.
 #endif