fix: remove obsolete lang rule settings

[marionebl]

The language rule was removed from bundled commitlint configuration in release 4.3.: https://github.com/marionebl/commitlint/releases/tag/v4.3.0, the override should be unnecessary by now.

[jlegrone]

@marionebl thanks! Would you mind also removing these lines in templates/commitlint-commitizen.config.js?

https://github.com/marionebl/create-semantic-module/blob/9e9572f39d50f0cd9e8ac801f588c5581c682289/packages/generator-semantic-module/src/generators/app/templates/commitlint-commitizen.config.js#L17-L19

[codecov]

Codecov Report

Merging #11 into master will not change coverage.
The diff coverage is n/a.

@@         Coverage Diff          @@
##           master   #11   +/-   ##
====================================
  Coverage      96%   96%           
====================================
  Files           3     3           
  Lines          50    50           
  Branches        8     8           
====================================
  Hits           48    48           
  Misses          2     2

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