staging: evict abandoned 68360serial.c driver from the kernel

commit 3a0db72

    "TTY: serial, move 68360 driver to staging"

did so because the driver had remained broken since 2008.  It also
added this text to the TODO file:

   "If no one steps up to adopt any of these drivers, they will
    be removed in the 3.4 release."

A quick search on the internet doesn't reveal anyone actively
trying to update/fix this driver, so follow through on the above
and remove it from the pending 3.4 release.

Cc: Jiri Slaby <jslaby@suse.cz>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Alan Cox <alan@linux.intel.com>
Cc: Greg Ungerer <gerg@snapgear.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/Kconfig

@@ -24,8 +24,6 @@ menuconfig STAGING
 
 if STAGING
 
-source "drivers/staging/serial/Kconfig"
-
 source "drivers/staging/et131x/Kconfig"
 
 source "drivers/staging/slicoss/Kconfig"

drivers/staging/Makefile

@@ -3,7 +3,6 @@
 # fix for build system bug...
 obj-$(CONFIG_STAGING)		+= staging.o
 
-obj-y				+= serial/
 obj-y				+= media/
 obj-$(CONFIG_ET131X)		+= et131x/
 obj-$(CONFIG_SLICOSS)		+= slicoss/