[netdrvr] fix compiler warnings in 3c359, proteon, skisa

tokenring drivers.

drivers/net/tokenring/3c359.c

@@ -464,7 +464,7 @@ static int xl_hw_reset(struct net_device *dev)
 		
 		printk(KERN_INFO "3C359: Uploading Microcode: "); 
 		
-		for (i = start,j=0; (j < mc_size && i <= 0xffff) ; i++,j++) { 
+		for (i = start, j = 0; j < mc_size; i++, j++) { 
 			writel(MEM_BYTE_WRITE | 0XD0000 | i, xl_mmio + MMIO_MAC_ACCESS_CMD) ; 
 			writeb(microcode[j],xl_mmio + MMIO_MACDATA) ; 
 			if (j % 1024 == 0)

drivers/net/tokenring/proteon.c

@@ -401,7 +401,6 @@ static int __init setup_card(unsigned long io, unsigned irq, unsigned char dma)
 int init_module(void)
 {
 	int i, num;
-	struct net_device *dev;
 
 	num = 0;
 	if (io[0]) { /* Only probe addresses from command line */

drivers/net/tokenring/skisa.c

@@ -414,7 +414,6 @@ static int __init setup_card(unsigned long io, unsigned irq, unsigned char dma)
 int init_module(void)
 {
 	int i, num;
-	struct net_device *dev;
 
 	num = 0;
 	if (io[0]) { /* Only probe addresses from command line */