How to Remove AMP Plugin Data on Your Site
The AMP project from Google might be killed off in the future. Currently, the official AMP plugin does not have an uninstall option or a UI to remove posts and options that the plugin will store in the site’s database. The option to search for in phpMyAdmin would be using the following option name; amp-options Then once the AMP option has been found you select and then delete it. To delete the posts that the AMP plugin had created then the recommendation would be to use a plugin such as Bulk Delete in order to be able to achieve that.