USB: serial: remove vizzini driver

It's out-dated for the tty-layer stuff, and would require a bunch of
work.  That's not really a big deal, the big issue is that there is no
company contact for the hardware, so questions we have about it (like
why isn't this just handled by the cdc-acm driver instead?) go
unanswered.

So drop the driver.  If someone comes along to help answer the
questions, we can easily revert this and fix up the code.

Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Rob Duncan <rob.duncan@exar.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/usb/serial/Kconfig

@@ -182,14 +182,6 @@ config USB_SERIAL_VISOR
 	  To compile this driver as a module, choose M here: the
 	  module will be called visor.
 
-config USB_SERIAL_VIZZINI
-	tristate "USB Vizzini Serial Converter Driver"
-	help
-	  Say Y here if you have a Vizzini USB to serial device.
-
-	  To compile this driver as a module, choose M here: the
-	  module will be called vizzini.
-
 config USB_SERIAL_IPAQ
 	tristate "USB PocketPC PDA Driver"
 	help

drivers/usb/serial/Makefile

@@ -59,7 +59,6 @@ obj-$(CONFIG_USB_SERIAL_SYMBOL)			+= symbolserial.o
 obj-$(CONFIG_USB_SERIAL_WWAN)			+= usb_wwan.o
 obj-$(CONFIG_USB_SERIAL_TI)			+= ti_usb_3410_5052.o
 obj-$(CONFIG_USB_SERIAL_VISOR)			+= visor.o
-obj-$(CONFIG_USB_SERIAL_VIZZINI)		+= vizzini.o
 obj-$(CONFIG_USB_SERIAL_WHITEHEAT)		+= whiteheat.o
 obj-$(CONFIG_USB_SERIAL_XIRCOM)			+= keyspan_pda.o
 obj-$(CONFIG_USB_SERIAL_VIVOPAY_SERIAL)		+= vivopay-serial.o