xfs: remove redundant assignment to variable error

Variable error is being initialized with a value that is never read
and is being re-assigned a couple of statements later on. The
assignment is redundant and hence can be removed.
Signed-off-by: NColin Ian King <colin.king@canonical.com>
Reviewed-by: NDarrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: NDarrick J. Wong <darrick.wong@oracle.com>

fs/xfs/xfs_super.c

@@ -1362,7 +1362,7 @@ xfs_fc_fill_super(
 {
 	struct xfs_mount	*mp = sb->s_fs_info;
 	struct inode		*root;
-	int			flags = 0, error = -ENOMEM;
+	int			flags = 0, error;
 
 	mp->m_super = sb;