Remove expired ports:

2020-05-31 sysutils/ansible24: Upstream support ended. Consider upgrading to sysutils/ansible
2020-05-31 sysutils/ansible26: Upstream support ended. Consider upgrading to sysutils/ansible
2020-05-31 sysutils/ansible25: Upstream support ended. Consider upgrading to sysutils/ansible
2020-05-31 www/py-requests-futures097: Use www/py-requests-futures instead
2020-05-31 sysutils/ansible23: Upstream support ended. Consider upgrading to sysutils/ansible
2020-05-31 devel/graphql.el: No longer required by anything