drivers/block: remove the umem driver

This removes the driver on the premise that it has been unused for a long
time. This is a better approach compared to changing untestable code
nobody cares about in the first place. Similarly, the umem.com website now
shows a mere Godaddy parking add.

Acked-by: NeilBrown <neilb@suse.de>
Suggested-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Davidlohr Bueso <dbueso@suse.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

arch/mips/configs/malta_defconfig

@@ -227,7 +227,6 @@ CONFIG_MTD_PHYSMAP_OF=y
 CONFIG_MTD_UBI=m
 CONFIG_MTD_UBI_GLUEBI=m
 CONFIG_BLK_DEV_FD=m
-CONFIG_BLK_DEV_UMEM=m
 CONFIG_BLK_DEV_LOOP=m
 CONFIG_BLK_DEV_CRYPTOLOOP=m
 CONFIG_BLK_DEV_NBD=m

arch/mips/configs/malta_kvm_defconfig

@@ -232,7 +232,6 @@ CONFIG_MTD_PHYSMAP_OF=y
 CONFIG_MTD_UBI=m
 CONFIG_MTD_UBI_GLUEBI=m
 CONFIG_BLK_DEV_FD=m
-CONFIG_BLK_DEV_UMEM=m
 CONFIG_BLK_DEV_LOOP=m
 CONFIG_BLK_DEV_CRYPTOLOOP=m
 CONFIG_BLK_DEV_NBD=m

arch/mips/configs/maltaup_xpa_defconfig

@@ -230,7 +230,6 @@ CONFIG_MTD_PHYSMAP_OF=y
 CONFIG_MTD_UBI=m
 CONFIG_MTD_UBI_GLUEBI=m
 CONFIG_BLK_DEV_FD=m
-CONFIG_BLK_DEV_UMEM=m
 CONFIG_BLK_DEV_LOOP=m
 CONFIG_BLK_DEV_CRYPTOLOOP=m
 CONFIG_BLK_DEV_NBD=m

drivers/block/Kconfig

@@ -121,23 +121,6 @@ source "drivers/block/mtip32xx/Kconfig"
 
 source "drivers/block/zram/Kconfig"
 
-config BLK_DEV_UMEM
-	tristate "Micro Memory MM5415 Battery Backed RAM support"
-	depends on PCI
-	help
-	  Saying Y here will include support for the MM5415 family of
-	  battery backed (Non-volatile) RAM cards.
-	  <http://www.umem.com/>
-
-	  The cards appear as block devices that can be partitioned into
-	  as many as 15 partitions.
-
-	  To compile this driver as a module, choose M here: the
-	  module will be called umem.
-
-	  The umem driver has not yet been allocated a MAJOR number, so
-	  one is chosen dynamically.
-
 config BLK_DEV_UBD
 	bool "Virtual block device"
 	depends on UML

drivers/block/Makefile

@@ -23,7 +23,6 @@ obj-$(CONFIG_BLK_DEV_LOOP)	+= loop.o
 obj-$(CONFIG_CDROM_PKTCDVD)	+= pktcdvd.o
 obj-$(CONFIG_SUNVDC)		+= sunvdc.o
 
-obj-$(CONFIG_BLK_DEV_UMEM)	+= umem.o
 obj-$(CONFIG_BLK_DEV_NBD)	+= nbd.o
 obj-$(CONFIG_BLK_DEV_CRYPTOLOOP) += cryptoloop.o
 obj-$(CONFIG_VIRTIO_BLK)	+= virtio_blk.o