remove random delays from getPayload

[michaelneuder]

📝 Summary

Removing these delays as we don't see them as useful and they only increase the risk of a delayed proposal and a resulting orphaned block.

---

✅ I have run these commands

• make lint
• make test-race
• go mod tidy
• I have seen and agree to CONTRIBUTING.md

[codecov-commenter]

Codecov Report

Merging #374 (d3a579a) into main (966fe0b) will increase coverage by 0.01%.
The diff coverage is 0.00%.

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@@            Coverage Diff             @@
##             main     #374      +/-   ##
==========================================
+ Coverage   19.59%   19.61%   +0.01%     
==========================================
  Files          20       20              
  Lines        3971     3967       -4     
==========================================
  Hits          778      778              
+ Misses       3099     3095       -4     
  Partials       94       94              

Flag	Coverage Δ
unittests	19.61% <0.00%> (+0.01%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
services/api/service.go	15.42% <0.00%> (+0.04%)	⬆️

[metachris]

thanks, that's a nice cleanup