Remove RigidTendonMuscle::equilibrate()
Remove RigidTendonMuscle::equilibrate()

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