Revert of Disable spdy tests for constant failures on Volantis bot (patchset #2 id:20001 of https://codereview.chromium.org/
836033006/)
Reason for revert:
https://crrev.com/
852053002 fixes the tests, they can be re-enabled.
Original issue's description:
> Disable spdy tests for constant failures on Volantis bot
>
> Per
> https://uberchromegw.corp.google.com/i/clank/builders/instrumentation-volantis-clankium-lmp,
> all spdy related tests have failed on volantis bot.
>
> BUG=447837
>
> Committed: https://crrev.com/
f13f7dbe2ec8d008d7aefa4c625d297685e62435
> Cr-Commit-Position: refs/heads/master@{#311401}
BUG=447837
Review URL: https://codereview.chromium.org/
800613008
Cr-Commit-Position: refs/heads/master@{#311555}