staging: rtl8192e: Remove unused variables ntotalfrag and Seq_Num

Remove unused variables ntotalfrag and Seq_Num as they are set and never
evaluated. Remove resulting local variables seq, sc and hdr as well.

Signed-off-by: Philipp Hortmann <[e-mail]>
Link: https://lore.kernel.org/r/4a3f2d2176[e-mail]
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

drivers/staging/rtl8192e/rtl8192e/r8192E_dev.c

···
 	static u32 slide_beacon_adc_pwdb_index;
 	static u32 slide_beacon_adc_pwdb_statistics;
 	static u32 last_beacon_adc_pwdb;
-	struct ieee80211_hdr_3addr *hdr;
-	u16 sc;
-	unsigned int seq;
 
-	hdr = (struct ieee80211_hdr_3addr *)buffer;
-	sc = le16_to_cpu(hdr->seq_ctrl);
-	seq = WLAN_GET_SEQ_SEQ(sc);
-	curr_st->Seq_Num = seq;
 	if (!prev_st->bIsAMPDU)
 		bcheck = true;
 
···
 	_rtl92e_translate_rx_signal_stats(dev, skb, stats, pdesc, pDrvInfo);
 	skb_trim(skb, skb->len - S_CRC_LEN);
 
-	stats->ntotalfrag = 1;
 	return true;
 }
 

drivers/staging/rtl8192e/rtllib.h

···
 	bool  bPacketMatchBSSID;
 	bool  bIsCCK;
 	bool  bPacketToSelf;
-	u16    ntotalfrag;
 	bool   bPacketBeacon;
 	bool   bToSelfBA;
-	u16    Seq_Num;
 };
 
 /* IEEE 802.11 requires that STA supports concurrent reception of at least