问题
I found these instructions
You should not remove plug-ins from Eclipse. Plug-ins should be installed as features using the Update Manager. The same Update Manager can be used to disable plug-ins by disabling the feature they belong to. Run Help > About Eclipse > Installation Details, select the software you no longer want and click Uninstall. (On Macintosh it is Eclipse > About Eclipse > Installation Details.) In older versions, you might need to Run Help > Software Updates > Manage Configuration..., select the feature of interest, and disable it with the task shown in the right window.
But they are not working for me.
回答1:
From ADT, go to Help > Install New Software... Then click on the link "What is already installed". You will have the list of your plugins and an uninstall button at the bottom.
来源：https://stackoverflow.com/questions/18261213/how-to-uninstall-plugin-egit-from-adt-eclipse