The San Francisco 49ers waived quarterback Josh Rosen on Tuesday. The team announced that they have claimed CB Davontae Harris off waivers from the Baltimore Ravens with the roster spot created by Rosen’s release. The decision to waive Rosen comes after the quarterback said publicly that he wasn’t getting many opportunities for snaps in training camp. The former No. 10 overall pick faces an uncertain future in the NFL. The quarterback was originally selected by the Arizona Cardinals in the 2018 NFL draft. The following year he was traded to the Miami Dolphins and then was waived by the team in…