remove brew update as it is automatic now (#946)
remove brew update as it is automatic now (#946)


vshatskyi/black-screen,shockone/black-screen,railsware/upterm,shockone/black-screen,railsware/upterm,black-screen/black-screen,vshatskyi/black-screen,black-screen/black-screen,vshatskyi/black-screen,black-screen/black-screen,vshatskyi/black-screen