Oct 5 (Reuters) - Anacor Pharmaceuticals Inc : * Announces that GSK has discontinued clinical development of gsk2251052 * Says Anacor and GSK are currently working together to transition gsk2251052 back to Anacor ((Bangalore Newsroom; +91 80 4135 5800; within U.S. +1 646 223 8780)) ((For more news, please click here ))