By Samuel Indyk LONDON (Reuters) – The British pound was little changed against the U.S. dollar on Friday, holding near a 16-month low and on track for a third consecutive weekly decline as stronger-than-expected UK economic growth provided little support to the pound. The Office for National Statistics said Britain’s economy grew 0.8% in January, the strongest monthly expansion since June and more than forecast by any economist in a Reuters poll, which had pointed to growth of 0.2%. The data are not expected to change the thinking of Bank of England policymakers, with a 25 basis point rate in…