Re-enable journal forwarding to syslog

Re-enable journal forwarding to syslog

Revert upstream commit 46b131574fdd7d77 for now, until Debian's sysloggers
can/do all read from the journal directly. See

  http://lists.freedesktop.org/archives/systemd-devel/2014-November/025550.html

for details. Once we grow a journal.conf.d/ directory, sysloggers can be moved
to pulling from the journal one by one and disable forwarding again in such a
conf.d snippet.

Gbp-Pq: Topic debian
Gbp-Pq: Name Re-enable-journal-forwarding-to-syslog.patch