LONDON (Reuters) – Active sales from the Bank of England’s more than 800 billion pounds of government bond holdings are unlikely to have a material economic impact, Bank of England policymaker Silvana Tenreyro said on Tuesday. “I wouldn’t expect the effect of the unwind, of QT (quantitative tightening), to have a material impact on the economy. So far our experience with the beginning of the shrinking of the portfolio is consistent with that,” Tenreyro said at a conference hosted by King’s Business School in London. Since February the BoE has not reinvested the proceeds of government bonds tha…