staging:r8188eu: refactor HT_caps_handler() - remove rtw_hal_get_hwreg() call

rtw_hal_get_hwreg(..., HW_VAR_RF_TYPE,...) always return RF_1T1R value.
Replace the function call with RF_1T1R value and refactor HT_caps_handler().
Signed-off-by: Ivan Safonov <insafonov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rtl8188eu/core/rtw_wlan_util.c

@@ -708,7 +708,6 @@ static void bwmode_update_check(struct adapter *padapter, struct ndis_802_11_var
 void HT_caps_handler(struct adapter *padapter, struct ndis_802_11_var_ie *pIE)
 {
 	unsigned int	i;
-	u8	rf_type;
 	u8	max_AMPDU_len, min_MPDU_spacing;
 	struct mlme_ext_priv	*pmlmeext = &padapter->mlmeextpriv;
 	struct mlme_ext_info	*pmlmeinfo = &(pmlmeext->mlmext_info);
@@ -744,15 +743,9 @@ void HT_caps_handler(struct adapter *padapter, struct ndis_802_11_var_ie *pIE)
 		}
 	}
 
-	rtw_hal_get_hwreg(padapter, HW_VAR_RF_TYPE, (u8 *)(&rf_type));
-
 	/* update the MCS rates */
-	for (i = 0; i < 16; i++) {
-		if ((rf_type == RF_1T1R) || (rf_type == RF_1T2R))
-			((u8 *)&pmlmeinfo->HT_caps.mcs)[i] &= MCS_rate_1R[i];
-		else
-			((u8 *)&pmlmeinfo->HT_caps.mcs)[i] &= MCS_rate_2R[i];
-	}
+	for (i = 0; i < 16; i++)
+		((u8 *)&pmlmeinfo->HT_caps.mcs)[i] &= MCS_rate_1R[i];
 }
 
 void HT_info_handler(struct adapter *padapter, struct ndis_802_11_var_ie *pIE)