[PATCH 2 of 2] changegroup: delete unused 'bundlecaps' argument

[Durham Goode]

On 5/3/17 10:44 AM, Martin von Zweigbergk via Mercurial-devel wrote:
> # HG changeset patch
> # User Martin von Zweigbergk <martinvonz at google.com>
> # Date 1493794030 25200
> #      Tue May 02 23:47:10 2017 -0700
> # Node ID 06058cbb9209df54bfa0aaf9f7d10b836a1e3ee9
> # Parent  bf2a70b5c015ff0720571c4512d67eb53f52b85e
> changegroup: delete unused 'bundlecaps' argument

This was pretty heavily used by remotefilelog to tell the bundler to not 
include filelogs in the changegroup.  Unfortunately there aren't really 
any other ways of communicating from the exchange layer to the cgpacker 
layer.

If this was just a clean-up commit, could we roll it back? Otherwise I 
have to jump through a lot of hoops to make remotefilelog work again 
(potentially involving adding some sort of options that get passed from 
the exchange layer down through to changegroup creation, just like 
bundlecaps were before).