net/wan: dscc4: remove broken dscc4 driver

Using static analysis, I discovered that the "dpriv->pci_priv->pdev"
pointer is always NULL.  This pointer was supposed to be initialized
during probe and is essential for the driver to work.  It would be easy
to add a "ppriv->pdev = pdev;" to dscc4_found1() but this driver has
been broken since before we started using git and no one has complained
so probably we should just remove it.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Francois Romieu <romieu@fr.zoreil.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

MAINTAINERS

@@ -5582,12 +5582,6 @@ T:	git git://linuxtv.org/media_tree.git
 S:	Maintained
 F:	drivers/media/radio/dsbr100.c
 
-DSCC4 DRIVER
-M:	Francois Romieu <romieu@fr.zoreil.com>
-L:	netdev@vger.kernel.org
-S:	Maintained
-F:	drivers/net/wan/dscc4.c
-
 DT3155 MEDIA DRIVER
 M:	Hans Verkuil <hverkuil@xs4all.nl>
 L:	linux-media@vger.kernel.org

drivers/net/wan/Kconfig

@@ -267,20 +267,6 @@ config FARSYNC
 	  To compile this driver as a module, choose M here: the
 	  module will be called farsync.
 
-config DSCC4
-	tristate "Etinc PCISYNC serial board support"
-	depends on HDLC && PCI && m
-	help
-	  Driver for Etinc PCISYNC boards based on the Infineon (ex. Siemens)
-	  DSCC4 chipset.
-
-	  This is supposed to work with the four port card. Take a look at
-	  <http://www.cogenit.fr/dscc4/> for further information about the
-	  driver.
-
-	  To compile this driver as a module, choose M here: the
-	  module will be called dscc4.
-
 config FSL_UCC_HDLC
 	tristate "Freescale QUICC Engine HDLC support"
 	depends on HDLC

drivers/net/wan/Makefile

@@ -18,7 +18,6 @@ obj-$(CONFIG_HOSTESS_SV11)	+= z85230.o	hostess_sv11.o
 obj-$(CONFIG_SEALEVEL_4021)	+= z85230.o	sealevel.o
 obj-$(CONFIG_COSA)		+= cosa.o
 obj-$(CONFIG_FARSYNC)		+= farsync.o
-obj-$(CONFIG_DSCC4)             += dscc4.o
 obj-$(CONFIG_X25_ASY)		+= x25_asy.o
 
 obj-$(CONFIG_LANMEDIA)		+= lmc/