staging: rtl8192e: Remove _rtl92e_dm_check_pbc_gpio

Function is empty.
Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rtl8192e/rtl8192e/rtl_dm.c

@@ -186,10 +186,6 @@ static	void _rtl92e_dm_init_cts_to_self(struct net_device *dev);
 static void _rtl92e_dm_init_wa_broadcom_iot(struct net_device *dev);
 
 static void _rtl92e_dm_check_edca_turbo(struct net_device *dev);
-
-static void _rtl92e_dm_check_pbc_gpio(struct net_device *dev);
-
-
 static void _rtl92e_dm_check_rx_path_selection(struct net_device *dev);
 static void _rtl92e_dm_init_rx_path_selection(struct net_device *dev);
 static void _rtl92e_dm_rx_path_sel_byrssi(struct net_device *dev);
@@ -254,7 +250,6 @@ void rtl92e_dm_watchdog(struct net_device *dev)
 
 	_rtl92e_dm_check_ac_dc_power(dev);
 
-	_rtl92e_dm_check_pbc_gpio(dev);
 	_rtl92e_dm_check_txrateandretrycount(dev);
 	_rtl92e_dm_check_edca_turbo(dev);
 
@@ -1834,10 +1829,6 @@ static void _rtl92e_dm_init_wa_broadcom_iot(struct net_device *dev)
 	pHTInfo->WAIotTH = WAIotTHVal;
 }
 
-static void _rtl92e_dm_check_pbc_gpio(struct net_device *dev)
-{
-}
-
 static void _rtl92e_dm_check_rf_ctrl_gpio(void *data)
 {
 	struct r8192_priv *priv = container_of_dwork_rsl(data,