net: remove ipv6_addr_copy()

C assignment can handle struct in6_addr copying.

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/security/selinux/netnode.c b/security/selinux/netnode.c
index 3bf46ab..8636585 100644
--- a/security/selinux/netnode.c
+++ b/security/selinux/netnode.c
@@ -220,7 +220,7 @@
 	case PF_INET6:
 		ret = security_node_sid(PF_INET6,
 					addr, sizeof(struct in6_addr), sid);
-		ipv6_addr_copy(&new->nsec.addr.ipv6, addr);
+		new->nsec.addr.ipv6 = *(struct in6_addr *)addr;
 		break;
 	default:
 		BUG();