remove unused dependency and method in nlp-feature-extractors package

[imatiach-msft]

Description

remove unused dependency and method in nlp-feature-extractors package

Checklist

• I have added screenshots above for all UI changes.
• I have added e2e tests for all UI changes.
• Documentation was updated if it was needed.

[codecov-commenter]

Codecov Report

Merging #1823 (0e24112) into main (5fe8a91) will decrease coverage by 5.73%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##             main    #1823      +/-   ##
==========================================
- Coverage   88.54%   82.80%   -5.74%     
==========================================
  Files          96       55      -41     
  Lines        5481     2926    -2555     
==========================================
- Hits         4853     2423    -2430     
+ Misses        628      503     -125     

Flag	Coverage Δ
unittests	82.80% <ø> (-5.74%)	⬇️

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Impacted Files	Coverage Δ
responsibleai/responsibleai/_data_validations.py
responsibleai/responsibleai/_tools/__init__.py
...ponsibleai/responsibleai/_tools/shared/__init__.py
...nsibleai/databalanceanalysis/data_balance_utils.py
responsibleai/responsibleai/_interfaces.py
...sponsibleai/responsibleai/managers/base_manager.py
...ai/databalanceanalysis/feature_balance_measures.py
...ai/responsibleai/_tools/causal/causal_constants.py
...tools/counterfactual/dashboard_schemas/__init__.py
...ibleai/_tools/shared/state_directory_management.py
... and 31 more

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[github-actions]

https://responsibleai.blob.core.windows.net/pullrequest/microsoft/responsible-ai-toolbox/ilmat/remove-nlp-dep/dashboard/index.html

[romanlutz]

Thanks for removing this, Ilya!