replace duplicate isContainer call

[oliveromahony]

Proposed changes

Remove duplicate isContainer call. Needs validation against AKS
FYI @mattdesmarais

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• I have run make install-tools and have attached any dependency changes to this pull request
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[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 65.94%. Comparing base (2a918fb) to head (f73e596).

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Additional details and impacted files

@@            Coverage Diff             @@
##             main     #596      +/-   ##
==========================================
- Coverage   66.11%   65.94%   -0.17%     
==========================================
  Files         118      118              
  Lines       13485    13485              
==========================================
- Hits         8915     8893      -22     
- Misses       3966     3990      +24     
+ Partials      604      602       -2     

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