COLUMBUS — Ohio State brought Will Kacmarek in from the transfer portal to bolster its tight end room. Kacmarek is already making a big impact on the tight end room as he rises on the depth chart. He saw a big step in that come to fruition on Friday after the latest Buckeyes practice; he shed his black stripe after practice, a signal that he’s officially a member of the football program. Kacmarek is the fifth Buckeyes transfer portal addition to lose his black stripe this spring, joining running back Quinshon Judkins, quarterback Will Howard, safety Caleb Downs and potential starting center Se…