rsyslogd config templates: remove invalid comments

rsyslogd version 7.x (which is shipped with Ubuntu 14.04) does not support
comments inside multi-line statements:

if ($programname == 'foo') \
 # some comment here
then -/var/log/foo.log

rsyslogd treats such a comment as a fatal error and refuses to start.
Remove those broken comments to avoid the error.

Change-Id: I7f5efc9ec5096777b58f7ec6576947d1d36d8ecd
Merge "rsyslogd config templates: remove invalid comments"