bitcoind: peer argument to bitcoind_sendrawtx is unused

This was a bit misleading, and we were passing in NULL sometimes
anyway. Removed unused argument.

daemon/bitcoind.c

@@ -286,8 +286,7 @@ static void process_sendrawtx(struct bitcoin_cli *bcli)
 	cb(bcli->bitcoind, *bcli->exitstatus, msg, bcli->cb_arg);
 }
 
-void bitcoind_sendrawtx_(struct peer *peer,
-			 struct bitcoind *bitcoind,
+void bitcoind_sendrawtx_(struct bitcoind *bitcoind,
 			 const char *hextx,
 			 void (*cb)(struct bitcoind *bitcoind,
 				    int exitstatus, const char *msg, void *),

daemon/bitcoind.h

@@ -52,15 +52,14 @@ void bitcoind_estimate_fee_(struct bitcoind *bitcoind,
 						   u64),		\
 			       (arg))
 
-void bitcoind_sendrawtx_(struct peer *peer,
-			 struct bitcoind *bitcoind,
+void bitcoind_sendrawtx_(struct bitcoind *bitcoind,
 			 const char *hextx,
 			 void (*cb)(struct bitcoind *bitcoind,
 				    int exitstatus, const char *msg, void *),
 			 void *arg);
 
-#define bitcoind_sendrawtx(peer_, bitcoind_, hextx, cb, arg)		\
-	bitcoind_sendrawtx_((peer_), (bitcoind_), (hextx),		\
+#define bitcoind_sendrawtx(bitcoind_, hextx, cb, arg)			\
+	bitcoind_sendrawtx_((bitcoind_), (hextx),			\
 			    typesafe_cb_preargs(void, void *,		\
 						(cb), (arg),		\
 						struct bitcoind *,	\

daemon/chaintopology.c

@@ -193,7 +193,7 @@ static void broadcast_remainder(struct bitcoind *bitcoind,
 	}
 
 	/* Broadcast next one. */
-	bitcoind_sendrawtx(NULL, bitcoind, txs->txs[txs->cursor],
+	bitcoind_sendrawtx(bitcoind, txs->txs[txs->cursor],
 			   broadcast_remainder, txs);
 }
 
@@ -284,7 +284,7 @@ void broadcast_tx(struct chain_topology *topo,
 	if (topo->dev_no_broadcast)
 		broadcast_done(topo->bitcoind, 0, "dev_no_broadcast", otx);
 	else
-		bitcoind_sendrawtx(peer, topo->bitcoind, otx->hextx,
+		bitcoind_sendrawtx(topo->bitcoind, otx->hextx,
 				   broadcast_done, otx);
 }