By Foo Yun Chee BRUSSELS (Reuters) – The head of the European Union’s competition commission on Monday dismissed calls by some groups to include labour law and environmental standards in a proposal aimed at curbing unfairly aided foreign companies buying EU businesses. Margrethe Vestager announced her proposal in May last year, seeking to crack down on foreign subsidies such as zero-interest loans, unlimited state guarantees, zero-tax agreements or dedicated state funding. These are common in the aluminium, steel, semiconductor, shipbuilding and automotive industries. Foreign companies seeking…