Cleanup delay calculation for readability

[ash2k]

This PR just improves the readability.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 83.35%. Comparing base (81a00ce) to head (42c0ad9).

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #8758      +/-   ##
==========================================
+ Coverage   83.22%   83.35%   +0.12%     
==========================================
  Files         418      418              
  Lines       32385    32384       -1     
==========================================
+ Hits        26952    26993      +41     
+ Misses       4050     4024      -26     
+ Partials     1383     1367      -16     

Files with missing lines	Coverage Δ
server.go	82.14% <100.00%> (+0.08%)	⬆️

... and 20 files with indirect coverage changes

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.