drivers/net/tokenring: fix sparse warning: symbol shadows an earlier one

Impact: Remove redundant variables.

Fix this sparse warnings:
  drivers/net/tokenring/lanstreamer.c:619:21: warning: symbol 'i' shadows an earlier one
  drivers/net/tokenring/lanstreamer.c:589:13: originally declared here
  drivers/net/tokenring/madgemc.c:695:34: warning: symbol 'tp' shadows an earlier one
  drivers/net/tokenring/madgemc.c:689:26: originally declared here
  drivers/net/tokenring/olympic.c:702:21: warning: symbol 'i' shadows an earlier one
  drivers/net/tokenring/olympic.c:440:13: originally declared here

Signed-off-by: Hannes Eder <hannes@hanneseder.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/tokenring/lanstreamer.c

@@ -616,8 +616,6 @@ static int streamer_open(struct net_device *dev)
 	printk("SISR Mask = %04x\n", readw(streamer_mmio + SISR_MASK));
 #endif
 	do {
-		int i;
-
 		for (i = 0; i < SRB_COMMAND_SIZE; i += 2) {
 			writew(0, streamer_mmio + LAPDINC);
 		}

drivers/net/tokenring/madgemc.c

@@ -692,8 +692,6 @@ static int madgemc_mcaproc(char *buf, int slot, void *d)
 
 	len += sprintf(buf+len, "-------\n");
 	if (curcard) {
-		struct net_local *tp = netdev_priv(dev);
-
 		len += sprintf(buf+len, "Card Revision: %d\n", curcard->cardrev);
 		len += sprintf(buf+len, "RAM Size: %dkb\n", curcard->ramsize);
 		len += sprintf(buf+len, "Cable type: %s\n", (curcard->cabletype)?"STP/DB9":"UTP/RJ-45");

drivers/net/tokenring/olympic.c

@@ -699,7 +699,6 @@ static int olympic_open(struct net_device *dev)
 	if (olympic_priv->olympic_network_monitor) { 
 		u8 __iomem *oat;
 		u8 __iomem *opt;
-		int i;
 		u8 addr[6];
 		oat = (olympic_priv->olympic_lap + olympic_priv->olympic_addr_table_addr);
 		opt = (olympic_priv->olympic_lap + olympic_priv->olympic_parms_addr);