tgt: removal

Now that the ibmvstgt driver as the only user of scsi_tgt is gone, the
scsi_tgt kernel module, the CONFIG_SCSI_TGT, CONFIG_SCSI_SRP_TGT_ATTRS and
CONFIG_SCSI_FC_TGT_ATTRS kbuild variable, the scsi_host_template
transfer_response method are no longer needed.

[hch: minor updates to the current tree, changelog update]

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>

drivers/scsi/Kconfig

@@ -304,13 +304,6 @@ config SCSI_SRP_ATTRS
 	  If you wish to export transport-specific information about
 	  each attached SRP device to sysfs, say Y.
 
-config SCSI_SRP_TGT_ATTRS
-	bool "SCSI target support for SRP Transport Attributes"
-	depends on SCSI_SRP_ATTRS
-	depends on SCSI_TGT = y || SCSI_TGT = SCSI_SRP_ATTRS
-	help
-		If you want to use SCSI target mode drivers enable this option.
-
 endmenu
 
 menuconfig SCSI_LOWLEVEL

drivers/scsi/Makefile

@@ -20,7 +20,6 @@ CFLAGS_gdth.o    = # -DDEBUG_GDTH=2 -D__SERIAL__ -D__COM2__ -DGDTH_STATISTICS
 obj-$(CONFIG_PCMCIA)		+= pcmcia/
 
 obj-$(CONFIG_SCSI)		+= scsi_mod.o
-obj-$(CONFIG_SCSI_TGT)		+= scsi_tgt.o
 
 obj-$(CONFIG_RAID_ATTRS)	+= raid_class.o
 
@@ -171,8 +170,6 @@ scsi_mod-$(CONFIG_PM)		+= scsi_pm.o
 
 hv_storvsc-y			:= storvsc_drv.o
 
-scsi_tgt-y			+= scsi_tgt_lib.o scsi_tgt_if.o
-
 sd_mod-objs	:= sd.o
 sd_mod-$(CONFIG_BLK_DEV_INTEGRITY) += sd_dif.o