ifchange.bat: drop old systems
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@55336 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
ifchange.bat: drop old systems
systems.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@55336 b2dd03c8-39d4-4d8f-98ff-823fe69b080e