code: public void removeAttribute(String name) {
          int i = names.indexOf(name);
          if (i != -1) {
              names.remove(i);
              types.remove(i);
              values.remove(i);
          }
      }
docs: Remove an attribute from the list.
  
  <p>SAX application writers can use this method to filter an
  attribute out of an AttributeList.  Note that invoking this
  method will change the length of the attribute list and
  some of the attribute's indices.</p>
  
  <p>If the requested attribute is not in the list, this is
  a no-op.</p>
  
  @param name The attribute name.
  @see #addAttribute