ARM: OMAP2+: Remove legacy usb-host.c platform init code

This is no longer needed when booted with device tree.
Signed-off-by: Tony Lindgren <tony@atomide.com>

arch/arm/mach-omap2/Makefile

@@ -246,7 +246,6 @@ obj-y					+= usb-musb.o
 obj-y					+= omap_phy_internal.o
 
 obj-$(CONFIG_MACH_OMAP2_TUSB6010)	+= usb-tusb6010.o
-obj-y					+= usb-host.o
 
 onenand-$(CONFIG_MTD_ONENAND_OMAP2)	:= gpmc-onenand.o
 obj-y					+= $(onenand-m) $(onenand-y)