[PATCH] ieee80211softmac_io.c: fix warning "defined but not used"

Got this compiler warning and Johannes Berg <johannes@sipsolutions.net>
wrote:

Yeah, known 'bug', we have that code there but never use it. Feel free
to submit a patch (to John Linville, CC netdev and softmac-dev) to
remove it.
Signed-off-by: NToralf Foerster <toralf.foerster@gmx.de>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

net/ieee80211/softmac/ieee80211softmac_io.c

@@ -439,48 +439,3 @@ ieee80211softmac_send_mgt_frame(struct ieee80211softmac_device *mac,
 	kfree(pkt);
 	return 0;
 }
-
-
-/* Create an rts/cts frame */
-static u32
-ieee80211softmac_rts_cts(struct ieee80211_hdr_2addr **pkt,
-	struct ieee80211softmac_device *mac, struct ieee80211softmac_network *net, 
-	u32 type)
-{
-	/* Allocate Packet */
-	(*pkt) = kmalloc(IEEE80211_2ADDR_LEN, GFP_ATOMIC);	
-	memset(*pkt, 0, IEEE80211_2ADDR_LEN);
-	if((*pkt) == NULL)
-		return 0;
-	ieee80211softmac_hdr_2addr(mac, (*pkt), type, net->bssid);
-	return IEEE80211_2ADDR_LEN;
-}
-
-
-/* Sends a control packet */
-static int
-ieee80211softmac_send_ctl_frame(struct ieee80211softmac_device *mac,
-	struct ieee80211softmac_network *net, u32 type, u32 arg)
-{
-	void *pkt = NULL;
-	u32 pkt_size = 0;
-	
-	switch(type) {
-	case IEEE80211_STYPE_RTS:
-	case IEEE80211_STYPE_CTS:
-		pkt_size = ieee80211softmac_rts_cts((struct ieee80211_hdr_2addr **)(&pkt), mac, net, type);
-		break;
-	default:
-		printkl(KERN_DEBUG PFX "Unsupported Control Frame type: %i\n", type);
-		return -EINVAL;
-	}
-
-	if(pkt_size == 0)
-		return -ENOMEM;
-	
-	/* Send the packet to the ieee80211 layer for tx */
-	ieee80211_tx_frame(mac->ieee, (struct ieee80211_hdr *) pkt, pkt_size);
-
-	kfree(pkt);
-	return 0;
-}