KISSIMMEE, Fla. — The Astros continue to trim their roster for Opening Day. Utility infielder Jake Elmore was optioned Friday to minor league camp, Astros manager Bo Porter said Friday. Elmore, 25, is expected to begin the season with Class AAA Oklahoma City and will primarily play second base. “Like I said to him, ‘We don’t want to have you sitting here just not playing. It’s better to get down to Triple-A, get quality playing time each and every day, so that if we have an unfortunate situation or injury or something … we have somebody that we can call upon to put in the lineup on an everyday basis,’ [...]