Revert "Increase timeouts in CallTest to reduce flakiness"

[Abacn]

Reverts #33775

[github-actions]

Checks are failing. Will not request review until checks are succeeding. If you'd like to override that behavior, comment assign set of reviewers

[github-actions]

Assigning reviewers. If you would like to opt out of this review, comment assign to next reviewer:

R: @robertwb for label java.
R: @damondouglas for label io.

Available commands:

• stop reviewer notifications - opt out of the automated review tooling
• remind me after tests pass - tag the comment author after tests pass
• waiting on author - shift the attention set back to the author (any comment or push by the author will return the attention set to the reviewers)

The PR bot will only process comments in the main thread (not review comments).

[scwhittle]

It's flaky the other way too, I'm guessing the new failure is due to test timeout. So perhaps a timeout in the middle and/or increasing the test timeout would make this not flake. But reverting for now since it got worse.