(c) by systematically and progressively abolishing all such qualifying periods and other restrictions provided for either under national legislation or under agreements previously concluded between Member States as imposed on workers of other Member States conditions re garding the free choice of employment other than those imposed on workers of the State concerned;
(c) tri dhiothú a dhéanamh go riunúil ugus go comhleanúnach ar na tréimhsi cáiliúcháin agus na srianta eile sin go léir, dá bhforáiltear faoi reachtaíocht náisiúnta nó faoi chomhaontuithe a bhí déanta idir na Ballstáit, a chuireann ar oibrithe ó Bhallstáit eile coinníollacha maidir le saor-rogha fostaiochta nach gcuirtear ar oibrithe an Stáit atá i geeist;