Remove sleeps from streaming tests

[erickpintor]

Description

Remove sleeps from streaming tests.

Motivation and context

Sleeps were added to patch over a long fixed bug. Time coordination should not be necessary and failures should be investigated further.

How was the change tested?

Unit tests changed ran many times locally without failures.

Screenshots (if appropriate):

NA

Change types

• • Bug fix (non-breaking change that fixes an issue)
• • New feature (non-breaking change that adds functionality)
• • Breaking change (backwards-incompatible fix or feature)

Checklist:

• • My code follows the code style of this project.
• • My change requires a change to Fauna documentation.
• • My change requires a change to the README, and I have updated it accordingly.

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[erickpintor]

I've managed to get a failure locally. It turns out the coordination is not between Fauna and the driver but between the two threads running in the same test case. We can at least turn it into a threading.Barrier to make tests run deterministically and faster.