iwl3945: fix compilation error in iwl3945_pass_packet_to_mac80211()

Commit "iwlwifi: Traffic type and counter for debugFs" broke iwl3945 in
a case when CONFIG_IWLWIFI_LEDS is disabled:

drivers/net/wireless/iwlwifi/iwl-3945.c:580: error: 'hdr' undeclared (first use in this function)

Fix it by removing the ifdef check for hdr variable.
Signed-off-by: NKalle Valo <kalle.valo@iki.fi>
Acked-by: NReinette Chatre <reinette.chatre@intel.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

drivers/net/wireless/iwlwifi/iwl-3945.c

@@ -544,9 +544,7 @@ static void iwl3945_pass_packet_to_mac80211(struct iwl_priv *priv,
 				   struct ieee80211_rx_status *stats)
 {
 	struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data;
-#ifdef CONFIG_IWLWIFI_LEDS
 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)IWL_RX_DATA(pkt);
-#endif
 	struct iwl3945_rx_frame_hdr *rx_hdr = IWL_RX_HDR(pkt);
 	struct iwl3945_rx_frame_end *rx_end = IWL_RX_END(pkt);
 	short len = le16_to_cpu(rx_hdr->len);