style: include PATH_TRAVERSAL_IN

[vil02]

This PR removes TopKWords. This change will allow to include the PATH_TRAVERSAL_IN.

I decided to remove the mentioned class because it was not tested and quite poorly implemented.

Continuation of #5144.

• I have read CONTRIBUTING.md.
• This pull request is all my own work -- I have not plagiarized it.
• All filenames are in PascalCase.
• All functions and variable names follow Java naming conventions.
• All new algorithms have a URL in their comments that points to Wikipedia or other similar explanations.
• All new code is formatted with clang-format -i --style=file path/to/your/file.java

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 38.26%. Comparing base (d2ddec5) to head (ec66549).

Additional details and impacted files

@@             Coverage Diff              @@
##             master    #5148      +/-   ##
============================================
+ Coverage     38.16%   38.26%   +0.10%     
  Complexity     2362     2362              
============================================
  Files           517      516       -1     
  Lines         15350    15309      -41     
  Branches       2965     2958       -7     
============================================
  Hits           5858     5858              
+ Misses         9205     9164      -41     
  Partials        287      287              

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[BamaCharanChhandogi]

thanks