Receding Brexit risks start to wash out billions of pounds of bearish bets against UK plc

London, October 22 - (Reuters) - Even though Brexit is set for another delay beyond this month, investors still appear confident enough to start unwinding tens of billions of pounds worth of bearish bets against the pound and domestically-focused UK stocks.With a "no deal" Brexit considered by markets to be off the table, some estimates of the scale of that portfolio rebalancing run to as high as a quarter of trillion pounds.Markets wobbled after the UK parliament refused to approve Prime..