staging: rtl8723bs: os_dep: Change return type of rtw_init_default_value() to void

rtw_init_default_value() func always returns a value (u8)_SUCCESS.
Modified return type to void to resolve coccicheck warnings
of unneeded variable.
Signed-off-by: Shobhit Kukreti <shobhitkukreti@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rtl8723bs/os_dep/os_intfs.c

@@ -599,9 +599,8 @@ void rtw_stop_drv_threads (struct adapter *padapter)
 	rtw_hal_stop_thread(padapter);
 }
 
-static u8 rtw_init_default_value(struct adapter *padapter)
+static void rtw_init_default_value(struct adapter *padapter)
 {
-	u8 ret  = _SUCCESS;
 	struct registry_priv *pregistrypriv = &padapter->registrypriv;
 	struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
 	struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
@@ -663,7 +662,6 @@ static u8 rtw_init_default_value(struct adapter *padapter)
 	padapter->driver_ampdu_spacing = 0xFF;
 	padapter->driver_rx_ampdu_factor =  0xFF;
 
-	return ret;
 }
 
 struct dvobj_priv *devobj_init(void)
@@ -745,7 +743,7 @@ u8 rtw_init_drv_sw(struct adapter *padapter)
 
 	RT_TRACE(_module_os_intfs_c_, _drv_info_, ("+rtw_init_drv_sw\n"));
 
-	ret8 = rtw_init_default_value(padapter);
+	rtw_init_default_value(padapter);
 
 	rtw_init_hal_com_default_value(padapter);