staging: brcm80211: remove retrieval function for tsf in wlc_main.c

wlc_main.c provides a function to read the tsf, but it is not used.
Consequently, it is removed.

Cc: devel@linuxdriverproject.org
Cc: linux-wireless@vger.kernel.org
Cc: Brett Rudley <brudley@broadcom.com>
Cc: Henry Ptasinski <henryp@broadcom.com>
Cc: Roland Vossen <rvossen@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/staging/brcm80211/brcmsmac/wlc_main.c

@@ -7868,11 +7868,6 @@ void wlc_set_rcmta(struct wlc_info *wlc, int idx, const u8 *addr)
 	wlc_bmac_set_rcmta(wlc->hw, idx, addr);
 }
 
-void wlc_read_tsf(struct wlc_info *wlc, u32 *tsf_l_ptr, u32 *tsf_h_ptr)
-{
-	wlc_bmac_read_tsf(wlc->hw, tsf_l_ptr, tsf_h_ptr);
-}
-
 void wlc_set_cwmin(struct wlc_info *wlc, u16 newmin)
 {
 	wlc->band->CWmin = newmin;

drivers/staging/brcm80211/brcmsmac/wlc_main.h

@@ -813,8 +813,6 @@ extern void wlc_get_rcmta(struct wlc_info *wlc, int idx,
 #endif
 extern void wlc_set_rcmta(struct wlc_info *wlc, int idx,
 			  const u8 *addr);
-extern void wlc_read_tsf(struct wlc_info *wlc, u32 *tsf_l_ptr,
-			 u32 *tsf_h_ptr);
 extern void wlc_set_cwmin(struct wlc_info *wlc, u16 newmin);
 extern void wlc_set_cwmax(struct wlc_info *wlc, u16 newmax);
 extern void wlc_fifoerrors(struct wlc_info *wlc);