staging: vt6655: struct tagDEVICE_TD_INFO remove dwHeaderLength

dwHeaderLength is assigned a value but that is never used.

Remove variable.

Signed-off-by: Malcolm Priestley <[e-mail]>
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

drivers/staging/vt6655/desc.h

···
 	unsigned char *buf;
 	dma_addr_t          buf_dma;
 	u16 dwReqCount;
-	unsigned long dwHeaderLength;
 	unsigned char byFlags;
 } DEVICE_TD_INFO,    *PDEVICE_TD_INFO;
 

drivers/staging/vt6655/rxtx.c

···
 	ptdCurr = (PSTxDesc)pHeadTD;
 
 	ptdCurr->pTDInfo->dwReqCount = (u16)cbReqCount;
-	ptdCurr->pTDInfo->dwHeaderLength = cbHeaderLength;
 
 	return cbHeaderLength;
 }