[libgdx] Removed debug physics checkbox from Skeleton Viewer.

spine-libgdx/spine-skeletonviewer/src/com/esotericsoftware/spine/SkeletonViewer.java

@@ -283,7 +283,6 @@ public class SkeletonViewer extends ApplicationAdapter {
 			debugRenderer.setPaths(ui.debugPathsCheckbox.isChecked());
 			debugRenderer.setPoints(ui.debugPointsCheckbox.isChecked());
 			debugRenderer.setClipping(ui.debugClippingCheckbox.isChecked());
-			debugRenderer.setClipping(ui.debugPhysicsCheckbox.isChecked());
 			debugRenderer.draw(skeleton);
 		}