Fix: Remove integration test suite

[localheinz]

This pull request

• removes the empty integration test suite

[codecov]

Codecov Report

Merging #136 (cbe81b9) into main (70c42c8) will not change coverage.
The diff coverage is n/a.

❗ Current head cbe81b9 differs from pull request most recent head f4beeeb. Consider uploading reports for the commit f4beeeb to get more accurate results

@@            Coverage Diff            @@
##               main     #136   +/-   ##
=========================================
  Coverage     97.89%   97.89%           
  Complexity       38       38           
=========================================
  Files             9        9           
  Lines            95       95           
=========================================
  Hits             93       93           
  Misses            2        2           

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