remove unnecesary dependencies in lc_classifier

[ignacioreyes]

Summary of the changes

bye bye imblearn, scikit learn, tensorflow and requests from lc_classifier dependencies
Some other very minor changes.

Observations

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If the change is BREAKING, please give more details about the breaking changes

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Components that need updates and steps to follow

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About this PR:

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• You linked this PR to the corresponding issue or user story.
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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 75.12%. Comparing base (576445c) to head (87bbb70).
Report is 15 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #517   +/-   ##
=======================================
  Coverage   75.12%   75.12%           
=======================================
  Files          29       29           
  Lines        2726     2726           
=======================================
  Hits         2048     2048           
  Misses        678      678           

Flag	Coverage Δ
lc_classifier	75.12% <ø> (ø)

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