chore: this removes the sanity check preventing to add burn fees to a…

[kerber0x]

… pair or trio with token factory tokens

Description and Motivation

This PR removes the check preventing to add burn fees to pairs and trios with token factory tokens. An upgrade to the token factory makes it possible to burn such tokens.

Related Issues

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Checklist:

• I have read Migaloo's contribution guidelines.
• My pull request has a sound title and description (not something vague like Update index.md)
• All existing and new tests are passing.
• I updated/added relevant documentation.
• The code is formatted properly cargo fmt --all --.
• Clippy doesn't report any issues cargo clippy -- -D warnings.
• I have regenerated the schemas if needed cargo schema.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (067ae80) 94.41% compared to head (b9eba56) 94.42%.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #259   +/-   ##
=======================================
  Coverage   94.41%   94.42%           
=======================================
  Files         218      218           
  Lines       24777    24691   -86     
=======================================
- Hits        23393    23314   -79     
+ Misses       1384     1377    -7     

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