LONDON (Reuters) – The two remaining Britons on Huawei UK’s board of directors, Andrew Cahn and Ken Olisa, resigned on Wednesday after the Chinese company failed to condemn Russia’s invasion of Ukraine. The two had urged Huawei to criticise Russian President Vladimir Putin’s administration from its headquarters in Shenzen, but the company had refused, a source familiar with the matter said, confirming a Sky News report. They then felt that, while it was a complex situation, their positions as directors of the Huawei UK board were untenable. A Huawei spokesperson said: “Sir Andrew Cahn and Sir …