REUTERS/Adriano MachadoBRASILIA (Reuters) - Brazil's Transparency Minister Fabiano Silveira resigned on Monday after leaked recordings suggested he tried to derail a sprawling corruption probe, the latest cabinet casualty impacting interim President Michel Temer's administration. Silveira, the man Temer tasked with fighting corruption since he took office on May 12, announced his plans to step down in a letter, according to the presidential palace's media office.