By Divya Rajagopal TORONTO (Reuters) – Waves of industry consolidation over the decades have resulted in fewer choices for customers from telecoms to banking, with Canadians paying the world’s most expensive mobile phone bills and forking out more for everyday banking, consumer advocates say. Now, the government says enough is enough. It wants to put some teeth in its antitrust regulations, much like the far-ranging powers wielded by authorities in the United States, the European Union and Australia. The proposed changes to the Competition Act are coming after more than a decade. They would in…