By Amanda Ferguson BELFAST (Reuters) – The Democratic Unionist Party (DUP) warned the British government on Saturday that there is no way they will restore power sharing government in Northern Ireland unless post-Brexit trade checks to the region are removed. Following a lengthy stalemate, Britain and the European Union resumed talks this week on how to fix problems relating to the Northern Ireland protocol that introduced the checks last year on some goods coming from the rest of the United Kingdom. A day after Ireland and Britain talked up an improved mood in talks, members gathered at the D…