rxrpc: don't multiply with HZ twice

rxrpc_resend_timeout has an initial value of 4 * HZ; use it as-is.
Signed-off-by: NFlorian Westphal <fw@strlen.de>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

net/rxrpc/ar-ack.c

@@ -260,7 +260,7 @@ static void rxrpc_resend(struct rxrpc_call *call)
 				sp->resend_at = jiffies + 3;
 			} else {
 				sp->resend_at =
-					jiffies + rxrpc_resend_timeout * HZ;
+					jiffies + rxrpc_resend_timeout;
 			}
 		}