mwifiex: remove redundant variable scan_table_idx

mwifiex_get_bss_info() routine updates variable 'info->scan_table_idx'
but it is never used.
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/mwifiex/ioctl.h

@@ -134,7 +134,6 @@ struct mwifiex_ver_ext {
 struct mwifiex_bss_info {
 	u32 bss_mode;
 	struct mwifiex_802_11_ssid ssid;
-	u32 scan_table_idx;
 	u32 bss_chan;
 	u32 region_code;
 	u32 media_connected;

drivers/net/wireless/mwifiex/sta_ioctl.c

@@ -376,7 +376,6 @@ int mwifiex_get_bss_info(struct mwifiex_private *priv,
 {
 	struct mwifiex_adapter *adapter = priv->adapter;
 	struct mwifiex_bssdescriptor *bss_desc;
-	s32 tbl_idx;
 
 	if (!info)
 		return -1;
@@ -394,17 +393,6 @@ int mwifiex_get_bss_info(struct mwifiex_private *priv,
 
 	info->region_code = adapter->region_code;
 
-	/* Scan table index if connected */
-	info->scan_table_idx = 0;
-	if (priv->media_connected) {
-		tbl_idx =
-			mwifiex_find_ssid_in_list(priv, &bss_desc->ssid,
-						  bss_desc->mac_address,
-						  priv->bss_mode);
-		if (tbl_idx >= 0)
-			info->scan_table_idx = tbl_idx;
-	}
-
 	info->media_connected = priv->media_connected;
 
 	info->max_power_level = priv->max_tx_power_level;