netfilter: Remove the spurious \ in __ip_vs_lblc_init

In (464dc801

 net: Don't export sysctls to unprivileged users)
I typoed and introduced a spurious backslash.  Delete it.

Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>