nodeinputarray: use deletelater rather than delete

Slightly safer code.

app/node/inputarray.cpp

@@ -59,8 +59,7 @@ void NodeInputArray::SetSize(int size)
   if (size < old_size) {
     // If the new size is less, delete all extraneous parameters
     for (int i=size;i<old_size;i++) {
-      NodeInput* sub_param = sub_params_.at(i);
-      delete sub_param;
+      sub_params_.at(i)->deleteLater();
     }
   }