remove duplicate initializer (macvlan)

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

drivers/net/macvlan.c

@@ -178,7 +178,6 @@ static const struct header_ops macvlan_hard_header_ops = {
 	.create  	= macvlan_hard_header,
 	.rebuild	= eth_rebuild_header,
 	.parse		= eth_header_parse,
-	.rebuild	= eth_rebuild_header,
 	.cache		= eth_header_cache,
 	.cache_update	= eth_header_cache_update,
 };