reiserfs: remove double definitions of xattr macros

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#	Subject and files	Size	Replies
1/3	reiserfs: remove double definitions of xattr macros`fs/reiserfs/xattr_security.c` `fs/reiserfs/xattr_trusted.c` `fs/reiserfs/xattr_user.c`	+0 -6	0 replies
2/3	ext2: remove double definitions of xattr macros`fs/ext2/xattr_security.c` `fs/ext2/xattr_trusted.c` `fs/ext2/xattr_user.c`	+2 -5	0 replies
3/3	ext3: remove double definitions of xattr macros`fs/ext3/xattr_security.c` `fs/ext3/xattr_trusted.c` `fs/ext3/xattr_user.c`	+2 -5	0 replies

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