New in version 5.0.
pio package unpublish [<organization>/]<pkgname>[@<version>] [OPTIONS]
This removes a package version from the registry, deleting its entry and removing the tarball.
If no version is specified, or if all versions are removed then the root package entry is removed from the registry entirely.
You can only remove a package version within 72 hours since the published date.
Set the type of a package to unpublish (if you have packages with the same name).
Possible values are library, platform, or tool. The default is set to library.
Undo a remove, putting a version back into the registry.