Clean up deprecated arguments

[vsupalov]

Close #300.

There is a bit of uncertainty. I'm not sure if I understood your intention with deprecating the sitemap flag - my guess is, that the functionality is intended be removed.

If that interpretation is correct, I will add some refactoring to the PR, to make sure the now-unnecessary sitemap related remnants are cleaned up.

[raviqqe]

Thank you for the changes! I'm gonna review this soon.

[codecov[bot]]

Codecov Report

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Additional details and impacted files

@@          Coverage Diff          @@
##             v3     #380   +/-   ##
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  Coverage      ?   88.68%           
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  Files         ?       33           
  Lines         ?      716           
  Branches      ?        0           
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  Hits          ?      635           
  Misses        ?       60           
  Partials      ?       21           

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[vsupalov]

Closing the PR for the sake of cleanup. Feel free to use the code!