usb: gadget: mv_u3d: remove outdated selects

USB_GADGET_{DUAL,SUPER}SPEED symbols have
been removed by commit 85b8614d (usb: gadget:
get rid of USB_GADGET_{DUAL,SUPER}SPEED), for
some reason mv_u3d_core was lost.

Remove those selects now.
Signed-off-by: NFelipe Balbi <balbi@ti.com>

drivers/usb/gadget/Kconfig

@@ -325,8 +325,6 @@ config USB_MV_UDC
 config USB_MV_U3D
 	tristate "MARVELL PXA2128 USB 3.0 controller"
 	depends on CPU_MMP3
-	select USB_GADGET_DUALSPEED
-	select USB_GADGET_SUPERSPEED
 	help
 	  MARVELL PXA2128 Processor series include a super speed USB3.0 device
 	  controller, which support super speed USB peripheral.