[autotest] Remove devserver1.  It is flake.

devserver1 is flaking a weirdly large amount.  Rather than debug this,
let's just rely on the other 3 that we have, and see what happens.

BUG=chromium:254096
TEST=beeps brought down devserver1 (via restart) yesterday, and things
became happy.

Change-Id: I0abf0bae8b6103db68bd4942e458315a4d51e041
Reviewed-on: https://gerrit.chromium.org/gerrit/59982
Tested-by: Alex Miller <milleral@chromium.org>
Reviewed-by: Prashanth Balasubramanian <beeps@chromium.org>
Commit-Queue: Alex Miller <milleral@chromium.org>
1 file changed