staging: brcm80211: removed unused argument from softmac functions

Parameter 's2' was unused. Affected function was only used internally
to main.c and has been made static and moved above its callers.
Reported-by: Johannes Berg <johannes@sipsolutions.net>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Reviewed-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Franky Lin <frankyl@broadcom.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/staging/brcm80211/brcmsmac/main.h

@@ -702,8 +702,6 @@ struct brcms_bss_cfg {
 extern void brcms_c_fatal_error(struct brcms_c_info *wlc);
 extern void brcms_b_rpc_watchdog(struct brcms_c_info *wlc);
 extern void brcms_c_recv(struct brcms_c_info *wlc, struct sk_buff *p);
-extern bool brcms_c_dotxstatus(struct brcms_c_info *wlc, struct tx_status *txs,
-			       u32 frm_tx2);
 extern void brcms_c_txfifo(struct brcms_c_info *wlc, uint fifo,
 			   struct sk_buff *p,
 			   bool commit, s8 txpktpend);