By Francesco Canepa, Balazs Koranyi and Frank Siebelt FRANKFURT (Reuters) – Some European Central Bank policymakers played down a change in the ECB’s official message on interest rates, which saw the bank remove a reference to “several” further hikes in the coming months, sources told Reuters. The European Central Bank raised interest rates again on Thursday and said it expects to increase them “further” but it cautioned “substantial” progress had already been made in its bid to fight off a historic surge in inflation. It also dropped a reference to increasing rates “over the next several meet…