ext4: remove duplicate extended attributes defs

#define EXT4_IOC_GET_ENCRYPTION_PWSALT	FS_IOC_GET_ENCRYPTION_PWSALT

#define EXT4_IOC_GET_ENCRYPTION_POLICY	FS_IOC_GET_ENCRYPTION_POLICY

#ifndef FS_IOC_FSGETXATTR

/* Until the uapi changes get merged for project quota... */

#define FS_IOC_FSGETXATTR		_IOR('X', 31, struct fsxattr)

#define FS_IOC_FSSETXATTR		_IOW('X', 32, struct fsxattr)

/*

 * Structure for FS_IOC_FSGETXATTR and FS_IOC_FSSETXATTR.

 */

struct fsxattr {

	__u32		fsx_xflags;	/* xflags field value (get/set) */

	__u32		fsx_extsize;	/* extsize field value (get/set)*/

	__u32		fsx_nextents;	/* nextents field value (get)	*/

	__u32		fsx_projid;	/* project identifier (get/set) */

	unsigned char	fsx_pad[12];

};

/*

 * Flags for the fsx_xflags field

 */

#define FS_XFLAG_REALTIME	0x00000001	/* data in realtime volume */

#define FS_XFLAG_PREALLOC	0x00000002	/* preallocated file extents */

#define FS_XFLAG_IMMUTABLE	0x00000008	/* file cannot be modified */

#define FS_XFLAG_APPEND		0x00000010	/* all writes append */

#define FS_XFLAG_SYNC		0x00000020	/* all writes synchronous */

#define FS_XFLAG_NOATIME	0x00000040	/* do not update access time */

#define FS_XFLAG_NODUMP		0x00000080	/* do not include in backups */

#define FS_XFLAG_RTINHERIT	0x00000100	/* create with rt bit set */

#define FS_XFLAG_PROJINHERIT	0x00000200	/* create with parents projid */

#define FS_XFLAG_NOSYMLINKS	0x00000400	/* disallow symlink creation */

#define FS_XFLAG_EXTSIZE	0x00000800	/* extent size allocator hint */

#define FS_XFLAG_EXTSZINHERIT	0x00001000	/* inherit inode extent size */

#define FS_XFLAG_NODEFRAG	0x00002000  	/* do not defragment */

#define FS_XFLAG_FILESTREAM	0x00004000	/* use filestream allocator */

#define FS_XFLAG_HASATTR	0x80000000	/* no DIFLAG for this */

#endif /* !defined(FS_IOC_FSGETXATTR) */

#define EXT4_IOC_FSGETXATTR		FS_IOC_FSGETXATTR

#define EXT4_IOC_FSSETXATTR		FS_IOC_FSSETXATTR