Remove deprecated PercentCompleted

[pmachapman]

Fixes #1018

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This change is 

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 72.82%. Comparing base (231bcba) to head (89f53cc).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1055      +/-   ##
==========================================
+ Coverage   72.79%   72.82%   +0.02%     
==========================================
  Files         390      391       +1     
  Lines       21715    21735      +20     
  Branches     2824     2824              
==========================================
+ Hits        15808    15829      +21     
+ Misses       4785     4784       -1     
  Partials     1122     1122              

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[Enkidu93]

@Enkidu93 reviewed 5 files and all commit messages, and made 1 comment.
Reviewable status: complete! all files reviewed, all discussions resolved (waiting on pmachapman).