ARM: configs: omap3_logic: remove Legacy OMAP3 USB driver

Only the MUSB driver is currently supported on the omap3_logic
boards.  The driver is using the new-musb and not the legacy
version, so this patch removes the dead code references.

Signed-off-by: Adam Ford <aford173@gmail.com>

configs/omap3_logic_defconfig

@@ -53,7 +53,6 @@ CONFIG_DM_SPI=y
 CONFIG_OMAP3_SPI=y
 CONFIG_USB=y
 CONFIG_USB_EHCI_HCD=y
-CONFIG_USB_OMAP3=y
 CONFIG_USB_MUSB_GADGET=y
 CONFIG_USB_MUSB_OMAP2PLUS=y
 CONFIG_TWL4030_USB=y