posix acls: Remove duplicate xattr name definitions

Remove POSIX_ACL_XATTR_{ACCESS,DEFAULT} and GFS2_POSIX_ACL_{ACCESS,DEFAULT}
and replace them with the definitions in <include/uapi/linux/xattr.h>.

Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Reviewed-by: James Morris <james.l.morris@oracle.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/include/linux/posix_acl_xattr.h b/include/linux/posix_acl_xattr.h
index 6f14ee2..e5e8ec4 100644
--- a/include/linux/posix_acl_xattr.h
+++ b/include/linux/posix_acl_xattr.h
@@ -9,16 +9,12 @@
 #ifndef _POSIX_ACL_XATTR_H
 #define _POSIX_ACL_XATTR_H
 
+#include <uapi/linux/xattr.h>
 #include <linux/posix_acl.h>
 
-/* Extended attribute names */
-#define POSIX_ACL_XATTR_ACCESS	"system.posix_acl_access"
-#define POSIX_ACL_XATTR_DEFAULT	"system.posix_acl_default"
-
 /* Supported ACL a_version fields */
 #define POSIX_ACL_XATTR_VERSION	0x0002
 
-
 /* An undefined entry e_id value */
 #define ACL_UNDEFINED_ID	(-1)