staging: rtl8188eu: Remove 'alloc_sz' from struct recv_buf

Driver isn't making any use of value stored in alloc_sz variable.
Signed-off-by: Nnavin patidar <navin.patidar@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rtl8188eu/hal/rtl8188eu_recv.c

@@ -61,7 +61,6 @@ int	rtl8188eu_init_recv_priv(struct adapter *padapter)
 	precvbuf = (struct recv_buf *)precvpriv->precv_buf;
 
 	for (i = 0; i < NR_RECVBUFF; i++) {
-		precvbuf->alloc_sz = MAX_RECVBUF_SZ;
 		res = rtw_os_recvbuf_resource_alloc(padapter, precvbuf);
 		if (res == _FAIL)
 			break;

drivers/staging/rtl8188eu/include/rtw_recv.h

@@ -240,7 +240,6 @@ struct recv_buf {
 	u8	*pbuf;
 	u32	len;
 	struct urb *purb;
-	u32 alloc_sz;
 	struct sk_buff *pskb;
 	u8	reuse;
 };