ServiceWorker: Remove the obsolete "parsed" state [1/3]

This change temporarily disable a test to be broken by subsequent two-sided
patches. The test will be re-enabled by the 3rd patch.

Spec: https://slightlyoff.github.io/ServiceWorker/spec/service_worker/index.html#service-worker-state

[1] Blink: THIS PATCH
[2] Chromium: https://codereview.chromium.org/685503004/
[3] Blink: https://codereview.chromium.org/683733002/

BUG=424081
TEST=n/a
NOTRY=true

Review URL: https://codereview.chromium.org/678253002

git-svn-id: svn://svn.chromium.org/blink/trunk@184491 bbb929c8-8fbe-4397-9dbb-9b2b20218538