Remove boilerplate directory and unused github workflow directory

[Future-Outlier]

Describe your changes

As title.

Check all the applicable boxes

• I updated the documentation accordingly.
• All new and existing tests passed.
• All commits are signed-off.

Note to reviewers

The 2 directories are unused.

[codecov]

Codecov Report

All modified lines are covered by tests ✅

Comparison is base (b35cc95) 58.98% compared to head (c93d5f5) 69.67%.
Report is 7 commits behind head on master.

❗ Current head c93d5f5 differs from pull request most recent head 0291af9. Consider uploading reports for the commit 0291af9 to get more accurate results

Additional details and impacted files

@@             Coverage Diff             @@
##           master    #4159       +/-   ##
===========================================
+ Coverage   58.98%   69.67%   +10.69%     
===========================================
  Files         618       31      -587     
  Lines       52708     1385    -51323     
===========================================
- Hits        31088      965    -30123     
+ Misses      19140      342    -18798     
+ Partials     2480       78     -2402     

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