LibWeb: Add select and options collection remove method

Author: https://github.com/bplaat
Commit: 7372c01786
Pull-request: https://github.com/SerenityOS/serenity/pull/23895
Reviewed-by: https://github.com/shannonbooth

Userland/Libraries/LibWeb/HTML/HTMLSelectElement.idl

@@ -24,8 +24,8 @@ interface HTMLSelectElement : HTMLElement {
     // FIXME: Element is really HTMLOptionElement
     Element? namedItem(DOMString name);
     [CEReactions] undefined add((HTMLOptionElement or HTMLOptGroupElement) element, optional (HTMLElement or long)? before = null);
-    // FIXME: [CEReactions] undefined remove(); // ChildNode overload
-    // FIXME: [CEReactions] undefined remove(long index);
+    [CEReactions] undefined remove(); // ChildNode overload
+    [CEReactions] undefined remove(long index);
     // FIXME: [CEReactions] setter undefined (unsigned long index, HTMLOptionElement? option);
 
     // FIXME: [SameObject] readonly attribute HTMLCollection selectedOptions;