By Paresh Dave OAKLAND, Calif. (Reuters) – Alphabet Inc’s Google from April 4 will require employees back about three days a week in some of its U.S., U.K. and Asia Pacific offices, its first step to end policies that allowed remote work because of COVID-19 concerns. An internal email on Wednesday seen by Reuters told employees in the San Francisco Bay Area that “advances in prevention and treatment, the steady decline in cases we continue to see and the improved safety measures we have implemented … now mean we can officially begin the transition to the hybrid work week.” Google joins a wav…