CRAS: remove old connect and stream_connected

There are backwards-compatible versions of cras_connect_message
and cras_client_stream_connected defined in cras_messages that have
been there for years. Delete them.

BUG=chromium:968724
TEST=unit tests, on device playback

Change-Id: Ie8059b2a82dff98fb5137a2d077e8c783dbb4c22
Reviewed-on: https://chromium-review.googlesource.com/1648957
Tested-by: Fletcher Woodruff <fletcherw@chromium.org>
Commit-Ready: Fletcher Woodruff <fletcherw@chromium.org>
Legacy-Commit-Queue: Commit Bot <commit-bot@chromium.org>
Reviewed-by: Chih-Yang Hsia <paulhsia@chromium.org>
3 files changed