The San Francisco 49ers are going to be linked to a lot of free-agent tight ends between now and the start of training camp. It makes sense because George Kittle might not be ready to start the season on the active list, and the team is thin without him. However, one name that does not make sense for the team is Darren Waller.  The San Francisco 49ers are unlikely to sign Darren Waller in free agency  Tyler Dragon of USA Today recently went through the top free agents available and tried to find a home for each one. Waller, he said that the 49ers were the best fit.  Waller exceeded expectations in Mike McDaniel’s systems after the tight end came out of retirement. His six touchdown receptions were tied for a team-high in Miami last season. McDaniel comes from the Kyle Shanahan coaching tree, which would make the transition for Waller easier.…