Citgo, the U.S. unit of Venezuela’s PDVSA, has removed from their positions four top executives as the battle for control over the company between the Maduro government and the opposition, led by Juan Guaido, heats up. Reuters quotes unnamed sources as saying the executives who were removed were close to the Venezuelan President. The move is part of the opposition’s attempt to seize control over the profitable business. Earlier this month, Guaido said he and his interim government were preparing a whole new board of directors for Citgo…