Stop autoinstalling webpagereplay.

We don't need it any more now that we are using telemetry for the
perf tests.

R=tonyg@chromium.org
BUG=230706

Review URL: https://codereview.chromium.org/19410004

git-svn-id: svn://svn.chromium.org/blink/trunk@154332 bbb929c8-8fbe-4397-9dbb-9b2b20218538