It appears this is sometimes done when it wasn't needed, causing
gpg-connect-agent to wait for an agent to start so that it can tell it
to stop, which results in a lot of noise on stderr when running `flatpak
update`. Debian 10 has GPG 2.2, and according to the commit message of
the commit I'm reverting here, this cleanup should be unnecessary with
GPG >= 2.2.
* d/p/{debian/,}Use-Python-3-for-tests.patch:
Mark patch as forwarded. It was previously considered
Debian-specific, but upstream seem interested.
* Mark all other patches as applied upstream for 2018.3
Simon McVittie