Alphabet Inc's Google on Friday said it will roll back requirements that U.S. suppliers and staffing firms pay their employees at least $15 an hour and provide health insurance and other benefits, a move that could allow the tech giant to avoid bargaining with unions. The elimination of the 2019 policy, along with other steps such as limiting access by temporary workers and vendors to internal systems, are designed to comply with shifting U.S. and global labor regulations related to contingent w