Fix double definition of getGravity in TSRBM
Fix double definition of getGravity in TSRBM

tkoolen/drake,manuelli/drake,psiorx/drake,scottviteri/drake,crogers3/drake,hanssusilo/drake,astrorog/drake,sheim/drake,edowson/drake,manuelli/drake,astrorog/drake,crogers3/drake,psiorx/drake,thientu/drake,thientu/drake,billhoffman/drake,crogers3/drake,edowson/drake,crogers3/drake,sheim/drake,thientu/drake,tkoolen/drake,hanssusilo/drake,hanssusilo/drake,sheim/drake,manuelli/drake,edowson/drake,psiorx/drake,scottviteri/drake,astrorog/drake,scottviteri/drake,astrorog/drake,psiorx/drake,sheim/drake,tkoolen/drake,scottviteri/drake,edowson/drake,hanssusilo/drake,edowson/drake,astrorog/drake,billhoffman/drake,sheim/drake,crogers3/drake,crogers3/drake,manuelli/drake,billhoffman/drake,thientu/drake,tkoolen/drake,psiorx/drake,hanssusilo/drake,hanssusilo/drake,billhoffman/drake,edowson/drake,thientu/drake,scottviteri/drake,astrorog/drake,tkoolen/drake,thientu/drake,hanssusilo/drake,thientu/drake,psiorx/drake,astrorog/drake,crogers3/drake,sheim/drake,edowson/drake,sheim/drake,tkoolen/drake,billhoffman/drake,hanssusilo/drake,manuelli/drake,psiorx/drake,edowson/drake,scottviteri/drake,scottviteri/drake,manuelli/drake,billhoffman/drake,tkoolen/drake,billhoffman/drake,billhoffman/drake,psiorx/drake,crogers3/drake,sheim/drake,manuelli/drake