deleteInstalledPackageId :: HasUnitId a
                         => UnitId -> PackageIndex a
                         -> PackageIndex a
deleteInstalledPackageId = deleteUnitId
deleteInstalledPackageId :: HasUnitId a
                         => UnitId -> PackageIndex a
                         -> PackageIndex a
deleteInstalledPackageId = deleteUnitId
deleteInstalledPackageId = deleteUnitId