OMAP1: remove duplicated #include

Remove duplicated #include in arch/arm/mach-omap1/board-nokia770.c.
Signed-off-by: NHuang Weiyi <weiyi.huang@gmail.com>
Signed-off-by: NTony Lindgren <tony@atomide.com>

arch/arm/mach-omap1/board-nokia770.c

@@ -36,7 +36,6 @@
 #include <mach/hwa742.h>
 #include <mach/lcd_mipid.h>
 #include <mach/mmc.h>
-#include <mach/usb.h>
 #include <mach/clock.h>
 
 #define ADS7846_PENDOWN_GPIO	15