redis - adding in testing on delete when not using redis sets

[jaredwray]

Please check if the PR fulfills these requirements

• Followed the Contributing guidelines.
• Tests for the changes have been added (for bug fixes/features) with 100% code coverage.
• Docs have been added / updated (for bug fixes / features)

What kind of change does this PR introduce? (Bug fix, feature, docs update, ...)
redis - adding in testing on delete when not using redis sets

[codecov]

Codecov Report

Patch coverage has no change and project coverage change: +0.11% 🎉

Comparison is base (cbe367c) 99.88% compared to head (fcffb55) 100.00%.

Additional details and impacted files

@@             Coverage Diff             @@
##             main      #920      +/-   ##
===========================================
+ Coverage   99.88%   100.00%   +0.11%     
===========================================
  Files          22        22              
  Lines        2597      2597              
  Branches      342       343       +1     
===========================================
+ Hits         2594      2597       +3     
+ Misses          3         0       -3     

see 1 file with indirect coverage changes

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