staging: rtl8192e: Remove variable ht_info->mpdu_density

ht_info->mpdu_density is set to 0 and unchanged. Therefore all equations
result accordingly and ht_info->forced_short_gi can be removed.
Signed-off-by: Philipp Hortmann <philipp.g.hortmann@gmail.com>
Link: https://lore.kernel.org/r/ef90d31e0e8281235ae4d138ce2de26e35c1bbd1.1702406712.git.philipp.g.hortmann@gmail.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rtl8192e/rtl819x_HT.h

@@ -105,7 +105,6 @@ struct rt_hi_throughput {
 	u8 current_ampdu_enable;
 	u8 ampdu_factor;
 	u8 CurrentAMPDUFactor;
-	u8 mpdu_density;
 	u8 current_mpdu_density;
 	u8 forced_ampdu_factor;
 	u8 forced_mpdu_density;

drivers/staging/rtl8192e/rtl819x_HTProc.c

@@ -73,7 +73,6 @@ void ht_update_default_setting(struct rtllib_device *ieee)
 
 	ht_info->ampdu_enable = 1;
 	ht_info->ampdu_factor = 2;
-	ht_info->mpdu_density = 0;
 
 	ieee->tx_dis_rate_fallback = 0;
 	ieee->tx_use_drv_assinged_rate = 0;
@@ -491,8 +490,7 @@ void HTOnAssocRsp(struct rtllib_device *ieee)
 							    HT_AGG_SIZE_32K);
 		}
 	}
-	ht_info->current_mpdu_density = max_t(u8, ht_info->mpdu_density,
-					      pPeerHTCap->MPDUDensity);
+	ht_info->current_mpdu_density = pPeerHTCap->MPDUDensity;
 	if (ht_info->iot_action & HT_IOT_ACT_TX_USE_AMSDU_8K) {
 		ht_info->current_ampdu_enable = false;
 	}
@@ -526,7 +524,7 @@ void HTInitializeHTInfo(struct rtllib_device *ieee)
 	ht_info->cur_short_gi_20mhz = false;
 	ht_info->cur_short_gi_40mhz = false;
 
-	ht_info->current_mpdu_density = ht_info->mpdu_density;
+	ht_info->current_mpdu_density = 0;
 	ht_info->CurrentAMPDUFactor = ht_info->ampdu_factor;
 
 	memset((void *)(&ht_info->SelfHTCap), 0,