private void dequalify() {
    final AbstractQualifiedReference qualifier = getQualifier();
    if (qualifier != null) {
      getNode().removeChild(qualifier.getNode());
      final PsiElement separator = getSeparator();
      if (separator != null) {
        final ASTNode separatorNode = separator.getNode();
        if (separatorNode != null) {
          getNode().removeChild(separatorNode);
        }
      }
    }
  }
private void dequalify()