How to remove old versions of Eclipse plugins?

After update, old Eclipse plugins remain in "plugins" folder (there are also leftovers in "features" folder).

Is there a way to remove those automatically?

How do I Uninstall PyDev from Eclipse?

To uninstall you should either go on and remove the org. python. pydev* from eclipse/plugins and eclipse/features or you can go to help > software updates > manage configuration, choose the PyDev plugin and disable it (after that, to completely remove it, you must restart Eclipse and only then select it for uninstall).

To get rid of the old plugins you have to clear the Installation History. Go to Help | About Eclipse | Installation Details | Installation History and select all the old stuff. Then click delete and restart. Voila. This works with Eclipse Helios (3.6)