Hotfix for extract_feature function

[andrea-pasquale]

Closes #798.

I removed the resonator_type check since it is not needed given that we will use just 2D resonators with flux tunable qubits. If someone can confirm this I can also drop the resonator_type from the data structure.

Checklist:

• Reviewers confirm new code works as expected.
• Tests are passing.
• Coverage does not decrease.
• Documentation is updated.
• Compatibility with Qibo modules (Please edit this section if the current pull request is not compatible with the following branches).
  • Qibo: master
  • Qibolab: main
  • Qibolab_platforms_qrc: main

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 97.13%. Comparing base (808e23f) to head (7cfa4a6).
Report is 26 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #799      +/-   ##
==========================================
- Coverage   97.19%   97.13%   -0.07%     
==========================================
  Files         104      104              
  Lines        7567     7786     +219     
==========================================
+ Hits         7355     7563     +208     
- Misses        212      223      +11     

Flag	Coverage Δ
unittests	97.13% <100.00%> (-0.07%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files	Coverage Δ
...haracterization/flux_dependence/qubit_crosstalk.py	93.12% <100.00%> (+1.69%)	⬆️
...cterization/flux_dependence/resonator_crosstalk.py	95.03% <100.00%> (-0.21%)	⬇️

... and 1 file with indirect coverage changes