how to remove wrapping widget

I want to remove the default wrapping ul and li class=page_item page-item-2 on the widget

this is my code

register_sidebar([
    id = footer1,
    name = __(Footer 1),
    description = __(A short description of the footer.),
    'before_widget' = 'ul',
    'after_widget' = '/ul',
    'before_title' = ' lispan class=footer-links-title',
    'after_title' = '/span/li',
]);

I want the result like this:

ul
  lispan class=footer-links-titleInformation/span/li
  lii class=fa fa-chevron-circle-right/i a href= class=linksTerms  Conditions/a/li
/ul

when I try it the result is like this:

ul
  li
    span class=footer-links-titlePages/span
  /li
  ul
    li class=page_item page-item-2
      a href=http://localhost/wordpress/sample-page/Sample Page/a
    /li
  /ul
/ul