fix(markup): remove redundant viewport meta tag (#5635), r=@vbudhram
fix(markup): remove redundant viewport meta tag (#5635), r=@vbudhram


shane-tomlinson/fxa-content-server,shane-tomlinson/fxa-content-server,mozilla/fxa-content-server,mozilla/fxa-content-server,mozilla/fxa-content-server,shane-tomlinson/fxa-content-server