refactor: remove transaction extensions

[sebastijankuzner]

Summary

Checklist

• Documentation (if necessary)
• Tests (if necessary)
• Ready to be merged

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 91.76%. Comparing base (0259928) to head (137a72a).
⚠️ Report is 3 commits behind head on develop.

Additional details and impacted files

@@             Coverage Diff              @@
##           develop    #1465       +/-   ##
============================================
+ Coverage    78.04%   91.76%   +13.71%     
============================================
  Files          952       11      -941     
  Lines        16306      437    -15869     
  Branches      2345       75     -2270     
============================================
- Hits         12726      401    -12325     
+ Misses        3575       34     -3541     
+ Partials         5        2        -3     

Flag	Coverage Δ
contracts	91.76% <ø> (?)
packages	?

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