iwl3945: Use iwl-hcmd host command routines

With the previously added tfd related ops, we can now use the iwl-tx.c host
command enqueue routine. Since the 3945 host command specific
routines are identical to the agn ones, we can just remove them from the 3945
code.

Signed-off-by: Samuel Ortiz <samuel.ortiz@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/iwlwifi/iwl-3945.c b/drivers/net/wireless/iwlwifi/iwl-3945.c
index 18e0f0e..1f3305b 100644
--- a/drivers/net/wireless/iwlwifi/iwl-3945.c
+++ b/drivers/net/wireless/iwlwifi/iwl-3945.c
@@ -1766,8 +1766,9 @@
 				txpower.power[i].rate);
 	}
 
-	return iwl3945_send_cmd_pdu(priv, REPLY_TX_PWR_TABLE_CMD,
-			sizeof(struct iwl3945_txpowertable_cmd), &txpower);
+	return iwl_send_cmd_pdu(priv, REPLY_TX_PWR_TABLE_CMD,
+				sizeof(struct iwl3945_txpowertable_cmd),
+				&txpower);
 
 }
 
@@ -2463,14 +2464,14 @@
 
 	/* Update the rate scaling for control frame Tx */
 	rate_cmd.table_id = 0;
-	rc = iwl3945_send_cmd_pdu(priv, REPLY_RATE_SCALE, sizeof(rate_cmd),
+	rc = iwl_send_cmd_pdu(priv, REPLY_RATE_SCALE, sizeof(rate_cmd),
 			      &rate_cmd);
 	if (rc)
 		return rc;
 
 	/* Update the rate scaling for data frame Tx */
 	rate_cmd.table_id = 1;
-	return iwl3945_send_cmd_pdu(priv, REPLY_RATE_SCALE, sizeof(rate_cmd),
+	return iwl_send_cmd_pdu(priv, REPLY_RATE_SCALE, sizeof(rate_cmd),
 				&rate_cmd);
 }