staging: r8188eu: remove HAL_DEF_IS_SUPPORT_ANT_DIV

In order to get rid of the function GetHalDefVar8188EUsb(), remove
the HAL_DEF_IS_SUPPORT_ANT_DIV case from it and move the functionality
into a new function. This is part of the ongoing effort to get rid of
the unwanted hal layer.
Signed-off-by: Michael Straube <straube.linux@gmail.com>
Link: https://lore.kernel.org/r/20220405104910.9769-3-straube.linux@gmail.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/r8188eu/core/rtw_cmd.c

@@ -1094,16 +1094,21 @@ static void antenna_select_wk_hdl(struct adapter *padapter, u8 antenna)
 	}
 }
 
+static bool rtw_antenna_diversity(struct adapter *adapter)
+{
+	struct hal_data_8188e *haldata = &adapter->haldata;
+
+	return haldata->AntDivCfg != 0;
+}
+
 u8 rtw_antenna_select_cmd(struct adapter *padapter, u8 antenna, u8 enqueue)
 {
 	struct cmd_obj		*ph2c;
 	struct drvextra_cmd_parm	*pdrvextra_cmd_parm;
 	struct cmd_priv	*pcmdpriv = &padapter->cmdpriv;
-	u8	support_ant_div;
 	u8	res = _SUCCESS;
 
-	GetHalDefVar8188EUsb(padapter, HAL_DEF_IS_SUPPORT_ANT_DIV, &support_ant_div);
-	if (!support_ant_div)
+	if (!rtw_antenna_diversity(padapter))
 		return res;
 
 	if (enqueue) {

drivers/staging/r8188eu/hal/usb_halinit.c

@@ -1200,9 +1200,6 @@ void GetHalDefVar8188EUsb(struct adapter *Adapter, enum hal_def_variable eVariab
 	struct hal_data_8188e *haldata = &Adapter->haldata;
 
 	switch (eVariable) {
-	case HAL_DEF_IS_SUPPORT_ANT_DIV:
-		*((u8 *)pValue) = (haldata->AntDivCfg == 0) ? false : true;
-		break;
 	case HAL_DEF_CURRENT_ANTENNA:
 		*((u8 *)pValue) = haldata->CurAntenna;
 		break;

drivers/staging/r8188eu/include/hal_intf.h

@@ -28,7 +28,6 @@ enum hw_variables {
 };
 
 enum hal_def_variable {
-	HAL_DEF_IS_SUPPORT_ANT_DIV,
 	HAL_DEF_CURRENT_ANTENNA,
 	HAL_DEF_DBG_DM_FUNC,/* for dbg */
 };