osb->s_mount_opt has already been checked against OCFS2_MOUNT_POSIX_ACL_CHECK before
calling ocfs2_get_acl_nolock() in ocfs2_init_acl() && ocfs2_get_acl(), so remove it.
Signed-off-by: NJeff Liu <jeff.liu@oracle.com>
Signed-off-by: NJoel Becker <joel.becker@oracle.com>