Revert "Restore backward compat for Genomic SEM style WLS"
Revert "Restore backward compat for Genomic SEM style WLS"

This reverts commit 2b5a639d6f2f32081759f93e4473144707593bea.

jpritikin/OpenMx,jpritikin/OpenMx,jpritikin/OpenMx,jpritikin/OpenMx,jpritikin/OpenMx,jpritikin/OpenMx