[RAW]: Consolidate proto->unhash callback

Same as the ->hash one, this is easily consolidated.

Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/net/raw.h b/include/net/raw.h
index 43f1e3c..81a1773 100644
--- a/include/net/raw.h
+++ b/include/net/raw.h
@@ -40,5 +40,6 @@
 #endif
 
 void raw_hash_sk(struct sock *sk, struct raw_hashinfo *h);
+void raw_unhash_sk(struct sock *sk, struct raw_hashinfo *h);
 
 #endif	/* _RAW_H */