To uninstall a plug-in, simply find it on your hard drive and drag it to the Recycle Bin.

Then quit and re-launch Photoshop.

There are two places where your plug-ins can be:​

- In a folder on your hard drive named <Your Hard Drive>\Program Files\Adobe\Adobe Photoshop CC 2017\Plug-ins

(The exact name depends on your version of Photoshop.)

- Or if you installed to the shared Creative Cloud location, the Plug-Ins folder is located here:

<Your Hard Drive>\Program Files\Common Files\Adobe\Plug-Ins\CC