Remove legacy 5.0->5.1 transition code that refers to an internal-use-only -directory that does not even exist anymore.
Remove legacy 5.0->5.1 transition code that refers to an internal-use-only -directory that does not even exist anymore.

ottok/mariadb-10.0,ottok/mariadb-10.0,ottok/mariadb-10.0,ottok/mariadb-10.0,ottok/mariadb-10.0,ottok/mariadb-10.0,ottok/mariadb-10.0,ottok/mariadb-10.0,ottok/mariadb-10.0,ottok/mariadb-10.0,ottok/mariadb-10.0,ottok/mariadb-10.0