By Andy Bruce and William Schomberg LONDON (Reuters) -The Bank of England said it would start selling some of its huge stock of British government bonds from Nov. 1 but would not sell this year any longer-duration gilts that have been in the eye of a recent storm in the British government bond market. The BoE said it was delaying its start date for the launch of its so-called quantitative tightening programme by a day from its previous schedule to avoid clashing with a government fiscal statement on Oct. 31. The central bank wants to reduce its 838 billion pounds ($948 billion) of government b…