WARSAW (Reuters) – Poland is about to finalize the takeover of PKP Energetyka – one of the country’s biggest energy groups and electricity supplier to the national railway – from buyout group CVC Capital Partners, the Polish ruling party leader said on Wednesday. Since taking the power in 2015, the nationalist Law and Justice (PiS) government took steps aimed at increasing control over certain parts of the economy, including energy, banking, and media sectors. “Among our tasks … was to recover these most strategic parts of our economy from the hands of external capital,” Jaroslaw Kaczynski s…