Revert "Fix typo"
This reverts commit dffd67eb311580aa2b14e7f5a069cfefdbf3aacc.
Revert "Handle quit message relay better on gateways with one channel on the irc bridge #722"
This reverts commit 240559581a225ff632c00a52e029b3728c61309e.
Revert "Support quits from irc correctly. Fixes#722 (#724)"
This reverts commit d76a04bd0a96772cec5b279aaa1ee45235adc707.