staging: vt6655: Remove call to STAvUpdateIsrStatCounter.

This function does not provide any data to users.

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

drivers/staging/vt6655/device.h

···
 	unsigned char abyCurrentNetAddr[ETH_ALEN]; __aligned(2)
 	bool bLinkPass;          /* link status: OK or fail */
 
-	/* Adapter statistics */
-	SStatCounter                scStatistic;
 	/* 802.11 counter */
 	SDot11Counters              s802_11Counter;
 

drivers/staging/vt6655/device_main.c

···
 	 * update ISR counter
 	 */
 	while (pDevice->dwIsr && pDevice->vif) {
-		STAvUpdateIsrStatCounter(&pDevice->scStatistic, pDevice->dwIsr);
 		MACvWriteISR(pDevice->PortOffset, pDevice->dwIsr);
 
 		if (pDevice->dwIsr & ISR_FETALERR) {