libertas: remove lots of unused stuff

This removes many unused function parameters as well as some not-implemented
functions, e.g. CMD_802_11_GET_STATS. The silly lbs_set_cmd_ctrl_node()
function is now also gone.

Signed-off-by: Holger Schurig <hs4233@mail.mn-solutions.de>
Acked-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/libertas/main.c b/drivers/net/wireless/libertas/main.c
index 449e84f..1eb0cb0 100644
--- a/drivers/net/wireless/libertas/main.c
+++ b/drivers/net/wireless/libertas/main.c
@@ -1391,7 +1391,7 @@
  *  @param cfp_no  A pointer to CFP number
  *  @return 	   A pointer to CFP
  */
-struct chan_freq_power *lbs_get_region_cfp_table(u8 region, u8 band, int *cfp_no)
+struct chan_freq_power *lbs_get_region_cfp_table(u8 region, int *cfp_no)
 {
 	int i, end;
 
@@ -1425,7 +1425,7 @@
 
 	memset(priv->region_channel, 0, sizeof(priv->region_channel));
 
-	cfp = lbs_get_region_cfp_table(region, band, &cfp_no);
+	cfp = lbs_get_region_cfp_table(region, &cfp_no);
 	if (cfp != NULL) {
 		priv->region_channel[i].nrcfp = cfp_no;
 		priv->region_channel[i].CFP = cfp;