Turns out it is simple but the directions are not so clear on this page.

http://www.viplugin.com/viplugin/?q=node/15

You need to go into your eclipse directory and remove the following so that it is completely gone. It is not enough to just remove the jar file.

  • plugins/com.mbartl.eclipse.viplugin.statusbar_1.0.4.jar
  • plugins/com.mbartl.viplugin.eclipse.layer_1.19.0/
  • plugins/com.mbartl.viplugin.eclipse.help_1.19.0/

Look in the features directory to make sure there is no mbartl jar files there as well.

Restart eclipse and you should no longer be bothered with the popup asking you to pay for a license.