[doxygen] Remove doxygen comment for commented-out method.
[doxygen] Remove doxygen comment for commented-out method.

Otherwise, the old doxygen comment would appear in html with the next method down (getControl).
opensim-org/opensim-core,opensim-org/opensim-core,opensim-org/opensim-core,opensim-org/opensim-core,opensim-org/opensim-core,opensim-org/opensim-core,opensim-org/opensim-core