I do not use this plugin on my jenkins server and see the option on the Manage Plugins > Installed Plugins page to uninstall it. I click the uninstall, it says "uninstall pending". I restart the server using `systemctl restart jenkins` but the plugin comes back.
For what it's worth the plugin is disabled, I don't know if that makes a difference.
I hit the same issue. After "uninstallation" of the plugin its version was just downgraded. Therefore it's then listed under the plugins with available updates.