chore: remove typings folder

[thetric]

This PR is an addition to #138 and deletes the typings folder.

#138 has gitignored the typings folder but has not deleted it from the repo.

[codecov-io]

Codecov Report

Merging #139 into master will not change coverage.
The diff coverage is n/a.

@@          Coverage Diff           @@
##           master    #139   +/-   ##
======================================
  Coverage    91.7%   91.7%           
======================================
  Files          16      16           
  Lines         639     639           
======================================
  Hits          586     586           
  Misses         53      53

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