This is a teacup subcommand.
The teacup remove subcommand is used to remove packages from the local repository.
The teacup remove option has been extended so that invoking it without arguments proceeds to delete all items in the local repository.
If you provide the name of a package, all versions of that package that reside in the local repository are deleted.
If you provide the name of a package and a version, then all variations of that package and version are deleted.