remove old defunct multi-browser setup in browser automation tests
remove old defunct multi-browser setup in browser automation tests

karlorg/drunken-octo-avenger,karlorg/drunken-octo-avenger,allanderek/drunken-octo-avenger,allanderek/drunken-octo-avenger,karlorg/drunken-octo-avenger,karlorg/drunken-octo-avenger,allanderek/drunken-octo-avenger,allanderek/drunken-octo-avenger