Revert "Implement virtio-vsock"

This reverts commit 9dc621e77e7e4f3c045831021b04d19997d3deb5.

We've moved to crosvm for real work now.  Lets get kvmtool back on
track with upstream so we can use it for early bring up work.

BUG=None
TEST=precq passes

Change-Id: I48248816eb02273d83a00b65814de682af6c7f9b
Reviewed-on: https://chromium-review.googlesource.com/775859
Commit-Ready: Mike Frysinger <vapier@chromium.org>
Tested-by: Mike Frysinger <vapier@chromium.org>
Reviewed-by: Stephen Barber <smbarber@chromium.org>
8 files changed