Cleanup: Remove implementation of class myHTTPPageGetter.
Cleanup: Remove implementation of class myHTTPPageGetter.

The code is the same as twisted.web.client.HTTPDownloader since at
least twisted 8.0.0.

furbrain/Coherence,unintended/Cohen,ismaelgaudioso/Coherence,unintended/Cohen,coherence-project/Coherence,coherence-project/Coherence,furbrain/Coherence,ismaelgaudioso/Coherence