refactor: remove old transaction types

[alexbarnsley]

Summary

https://app.clickup.com/t/86du506a0

Checklist

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

[codecov-commenter]

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Codecov Report

Attention: Patch coverage is 75.00000% with 1 line in your changes missing coverage. Please review.

Please upload report for BASE (feat/mainsail@670c967). Learn more about missing BASE report.

Files	Patch %	Lines
crypto/transactions/builder/base.py	66.66%	1 Missing ⚠️

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Additional details and impacted files

@@               Coverage Diff                @@
##             feat/mainsail     #131   +/-   ##
================================================
  Coverage                 ?   81.60%           
================================================
  Files                    ?       39           
  Lines                    ?      810           
  Branches                 ?       97           
================================================
  Hits                     ?      661           
  Misses                   ?      121           
  Partials                 ?       28           

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