Remove iga-* triggers [DXEX-4601]

[Widcket]

🔧 Changes

This PR removes all references to the IGA triggers, which are unused, and can be confusing to developers.

📚 References

N/A

🔬 Testing

N/A

📝 Checklist

• All new/changed/fixed functionality is covered by tests (or N/A)
• I have added documentation for all new/changed functionality (or N/A)

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 71.80%. Comparing base (7dc58e0) to head (6fe7f9f).
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1099   +/-   ##
=======================================
  Coverage   71.80%   71.80%           
=======================================
  Files          94       94           
  Lines       13150    13150           
=======================================
  Hits         9443     9443           
  Misses       3153     3153           
  Partials      554      554           

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