Remove superfluous testing files (as changeset 5c4d6666125a but more complete)
Remove superfluous testing files (as changeset 5c4d6666125a but more complete)

rotorliu/eigen,madlib/eigen_backup,rotorliu/eigen,mjbshaw/Eigen,mjbshaw/Eigen,rotorliu/eigen,rotorliu/eigen,madlib/eigen_backup,madlib/eigen_backup,mjbshaw/Eigen,mjbshaw/Eigen,madlib/eigen_backup