Remove known failure runners

[mborland]

This should cycle green, and if squash merged it'll be easy to revert.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 93.91%. Comparing base (6bd0191) to head (575b476).
Report is 57 commits behind head on develop.

Additional details and impacted files

@@           Coverage Diff            @@
##           develop    #1266   +/-   ##
========================================
  Coverage    93.91%   93.91%           
========================================
  Files          661      661           
  Lines        54866    54866           
========================================
  Hits         51526    51526           
  Misses        3340     3340           

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