Revert "mei: virtio: virtualization frontend driver"

This reverts commit d162219.

The device uses a VIRTIO device ID out of a not-for-production range.
Releasing Linux using an ID out of this range will make it conflict with
development setups. An official request to reserve an ID for an MEI
device is yet to be submitted to the virtio TC, thus there's no chance
it will be reserved and fixed in time before the next release.

Once requested it usually takes 2-3 weeks to land in the spec, which
means the device can be supported with the official ID in the next Linux
version if contributors act quickly.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Cc: Tomas Winkler <tomas.winkler@intel.com>
Cc: Alexander Usyskin <alexander.usyskin@intel.com>
Cc: Wang Yu <yu1.wang@intel.com>
Cc: Liu Shuo <shuo.a.liu@intel.com>
Link: https://lore.kernel.org/r/20201205193625.469773-1-mst@redhat.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Author: mstsirkin

drivers/misc/mei/Kconfig

@@ -46,14 +46,4 @@ config INTEL_MEI_TXE
 	  Supported SoCs:
 	  Intel Bay Trail
 
-config INTEL_MEI_VIRTIO
-	tristate "Intel MEI interface emulation with virtio framework"
-	select INTEL_MEI
-	depends on X86 && PCI && VIRTIO_PCI
-	help
-	  This module implements mei hw emulation over virtio transport.
-	  The module will be called mei_virtio.
-	  Enable this if your virtual machine supports virtual mei
-	  device over virtio.
-
 source "drivers/misc/mei/hdcp/Kconfig"

drivers/misc/mei/Makefile

@@ -22,9 +22,6 @@ obj-$(CONFIG_INTEL_MEI_TXE) += mei-txe.o
 mei-txe-objs := pci-txe.o
 mei-txe-objs += hw-txe.o
 
-obj-$(CONFIG_INTEL_MEI_VIRTIO) += mei-virtio.o
-mei-virtio-objs := hw-virtio.o
-
 mei-$(CONFIG_EVENT_TRACING) += mei-trace.o
 CFLAGS_mei-trace.o = -I$(src)