Cleanup class ProxyClient (part 1): Remove method implementations.
Cleanup class ProxyClient (part 1): Remove method implementations.

The code of the removed methods is the same as in twisted.web since long.

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