chore: Remove sleep from when/then in e2e tests

[andrii-korotkov-verkada]

These sleeps might be unnecessary, remove them and check the e2e tests.

Closes #21007

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 55.05%. Comparing base (02d6866) to head (d325622).
Report is 1 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master   #21008      +/-   ##
==========================================
+ Coverage   55.03%   55.05%   +0.01%     
==========================================
  Files         324      324              
  Lines       55466    55466              
==========================================
+ Hits        30526    30537      +11     
+ Misses      22330    22321       -9     
+ Partials     2610     2608       -2     

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[andrii-korotkov-verkada]

Turns out we can just do it, saves ~5 min.

Before:

After:

[revitalbarletz]

One question, why were the sleep there in the first place?

[andrii-korotkov-verkada]

One question, why were the sleep there in the first place?

I don't know, I couldn't find an explanation, but the code is very old.

[crenshaw-dev]

Seems fine, let's give it a whirl. If we see an increase in flakes, we'll tackle those.