Update InverseKinematicsTool.cpp
Update InverseKinematicsTool.cpp

Remove extra declaration that shadows reporter.
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