By Shadia Nasralla LONDON (Reuters) -Capricorn Energy said on Friday the shareholder vote on its planned merger with Israel’s NewMed Energy LP would be on Feb. 1, the same day as a vote triggered by activist shareholder Palliser wanting to oust Capricorn’s leadership. The British oil and gas producer added in a letter from its board that the transitional chairperson of the new entity would be Peter Kallos rather than Simon Thomson, the Capricorn chief executive and target of the activist shareholder, who was initially earmarked. This means he would no longer have a role at the combined firm, w…