ZIMBABWE's parliament approved legislation yesterday removing a clause in the constitution on electing vice presidents, a move which the opposition says is intended by President Emmerson Mnangagwa to concentrate power in the presidency. The parliament also extended the tenure of senior judges, who will now be appointed by the president in consultation with the judicial service commission, instead of being subjected to public interviews as is the case now. In 2013, Zimbabweans voted for a new constitution including a clause stipulating that the vice president should be elected together with the president, but the clause was suspended for 10 years…