Nov 14 (Reuters) - President-elect Donald Trump's transition team is planning to kill the $7,500 consumer tax credit for electric-vehicle purchases as part of broader tax-reform legislation, two sources with direct knowledge of the matter told Reuters. Ending the tax credit could have grave implications for an already stalling U.S. EV transition. And yet representatives of Tesla (TSLA.O), opens new tab - by far the nation's biggest EV maker - have told a Trump-transition committee they support ending the subsidy, said the two sources, speaking on condition of anonymity.