sh: Fix up se7751 build.

Trivial compile fix.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

arch/sh/boards/se/7751/setup.c

@@ -41,7 +41,6 @@ static struct platform_device heartbeat_device = {
 };
 
 static struct platform_device *se7751_devices[] __initdata = {
-	&smc91x_device,
 	&heartbeat_device,
 };