chore: cleanup aigw cli e2e tests

[nacx]

Description

Removes unused files and unskips a couple tests in the AIGW CLI e2e that were skipped.

Related Issues/PRs (if applicable)

N/A

Special notes for reviewers (if applicable)

N/A

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 83.23%. Comparing base (e011e5c) to head (98e853d).

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1632   +/-   ##
=======================================
  Coverage   83.23%   83.23%           
=======================================
  Files         137      137           
  Lines       12385    12385           
=======================================
  Hits        10309    10309           
  Misses       1447     1447           
  Partials      629      629           

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