Some of the nation’s largest banks – including Bank of America, JPMorgan Chase and Wells Fargo – have begun cutting mortgage production workers as refi applications decline. But it remains to be seen just how many of the 215,000 full-time mortgage-related positions – excluding loan brokers – will see pink slips over the rest of the year. “What we’re seeing is a natural outcome of contraction as the market slips and changes to a purchase business,” said Dave Stevens, president of the Mortgage Bankers Association. He declined to give any job cut estimates, but predicted that residential lenders of all different charters and types will move to “right-size their organizations.” Some bearish industry officials believe...