[eclipse-plugin] Correct way to remove plugin from Eclipse

Using the menus, open

  • Help | About Eclipse IDE | Installation details (in newer versions),
  • Help | Installation Details (in older versions), or
  • Help | About Eclipse | Installation details (in even older versions).

In the "Installed software" tab click on the software that you wish to uninstall, then click the "Uninstall..." button below.

If you installed the plug-in by dropping into the dropins folder, then just delete it from the dropins folder and restart Eclipse.

See the answer of @Cogentleman for more recent versions of Eclipse.