fix #9458 - tagchecker: detect `emergency=permissive` and fix it by `emergency=yes` + remove unecessary fixRemove statements

git-svn-id: http://josm.openstreetmap.de/svn/trunk@6527 0c6e7542-c601-0410-84e7-c038aed88b3b
Merge branch 'master' into mirror