devserver: Deprecate hostinfo API

This API is not used anywhere, deprecate it.

BUG=chromium:872441
TEST=devserver_integration_test.py
TEST=./devserver.py

Change-Id: I4df936350f74584090efd6ee243456ec3e6a39ce
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/dev-util/+/1828166
Commit-Queue: Amin Hassani <ahassani@chromium.org>
Tested-by: Amin Hassani <ahassani@chromium.org>
Reviewed-by: David Haddock <dhaddock@chromium.org>
2 files changed