take out unneccessary worker code
take out unneccessary worker code


Former-commit-id: aca02cdbe1fc8d625a10e50a99145144b0b8f13f
Former-commit-id: 767ca9e48f55a542e6c93c7e2275f7815d831cbe
Former-commit-id: dcac62aa3efeba88b44831c11b910b95b60ad7b7
HaliteChallenge/Halite-II,yangle/HaliteIO,HaliteChallenge/Halite,HaliteChallenge/Halite-II,HaliteChallenge/Halite,yangle/HaliteIO,lanyudhy/Halite-II,yangle/HaliteIO,yangle/HaliteIO,lanyudhy/Halite-II,yangle/HaliteIO,HaliteChallenge/Halite-II,HaliteChallenge/Halite,lanyudhy/Halite-II,HaliteChallenge/Halite-II,HaliteChallenge/Halite,HaliteChallenge/Halite,HaliteChallenge/Halite-II,HaliteChallenge/Halite-II,HaliteChallenge/Halite-II,lanyudhy/Halite-II,lanyudhy/Halite-II,lanyudhy/Halite-II,HaliteChallenge/Halite-II,HaliteChallenge/Halite,HaliteChallenge/Halite,HaliteChallenge/Halite-II,yangle/HaliteIO,yangle/HaliteIO,HaliteChallenge/Halite-II,lanyudhy/Halite-II,yangle/HaliteIO,yangle/HaliteIO,yangle/HaliteIO,yangle/HaliteIO,HaliteChallenge/Halite-II,HaliteChallenge/Halite,HaliteChallenge/Halite-II,HaliteChallenge/Halite,HaliteChallenge/Halite-II,lanyudhy/Halite-II,HaliteChallenge/Halite-II,HaliteChallenge/Halite,lanyudhy/Halite-II,HaliteChallenge/Halite-II,lanyudhy/Halite-II,HaliteChallenge/Halite,HaliteChallenge/Halite,HaliteChallenge/Halite-II,lanyudhy/Halite-II,yangle/HaliteIO