This plugin rescinds protection of players conferred by NoobProtect.
NoobProtect works by setting setInvulnerable(true) and setGlowing(true) and then setting these to false when their protection expires.
If you uninstall the plugin, nothing will ever set these to false to players that have been made invulnerable.
If you want to remove NoobProtect. Do so, then install this plugin for a time to remove those protections.
To install this plugin, copy the plugin JAR file to your server's plugins folder.