Fixed RemoveChild for nifs that have their skin influence flag set on NiNodes...

Fixed RemoveChild for nifs that have their skin influence flag set on NiNodes that aren't actually bone influences.

src/obj/NiNode.cpp

@@ -228,11 +228,6 @@ void NiNode::RemoveChild( Ref<NiAVObject> obj ) {
 	//Search child list for the one to remove
 	for ( vector< NiAVObjectRef >::iterator it = children.begin(); it != children.end(); ) {
 		if ( *it == obj ) {
-			//Ensure that this child is not a skin influence
-			NiNodeRef niNode = DynamicCast<NiNode>((*it));
-			if ( niNode != NULL && niNode->IsSkinInfluence() == true ) {
-				throw runtime_error("You cannot remove a node child that is a skin influence.  Detatch the skin first.");
-			}
 			(*it)->SetParent(NULL);
 			it = children.erase( it );
 		} else {