dccp: remove unused function argument

This removes an unused 'sk' argument from several option-inserting functions.

Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/dccp/ackvec.c b/net/dccp/ackvec.c
index 01e4d39..2abddee 100644
--- a/net/dccp/ackvec.c
+++ b/net/dccp/ackvec.c
@@ -82,7 +82,7 @@
 	elapsed_time = delta / 10;
 
 	if (elapsed_time != 0 &&
-	    dccp_insert_option_elapsed_time(sk, skb, elapsed_time))
+	    dccp_insert_option_elapsed_time(skb, elapsed_time))
 		return -1;
 
 	avr = dccp_ackvec_record_new();