remove extraneous test

Author: dfl

test/components/combobox_component_test.rb

@@ -44,30 +44,6 @@ def test_required_adds_class_to_label
     assert_selector "label.required"
   end
 
-  def test_renders_well_formed_html_structure
-    render_inline(ComboboxComponent.new(
-      form: build_form,
-      method: :combobox_field,
-      label: "Choose fruit",
-      collection: simple_collection,
-      item_value_method: :value,
-      item_label_method: :label
-    ))
-
-    doc = Nokogiri::HTML5.fragment(rendered_content, max_errors: -1)
-    assert_empty doc.errors, "Expected no HTML parse errors, got: #{doc.errors.map(&:to_s).join("\n")}"
-
-    # The list dropdown must be a sibling of the input row's flex wrapper,
-    # not nested inside it — otherwise the popover renders inside the input.
-    list = doc.css("ul").find { |n| n.attributes.key?("x-combobox:list") }
-    refute_nil list, "expected an x-combobox:list <ul>"
-    parent_classes = list.parent["class"].to_s.split
-    assert_includes parent_classes, "relative"
-    assert_includes parent_classes, "mt-cfa-sm"
-    refute_includes parent_classes, "flex",
-      "x-combobox:list <ul> must not be nested inside the input's flex wrapper"
-  end
-
   def test_item_disabled_method_marks_options_disabled
     collection = [
       OpenStruct.new(value: "yes", label: "Yes", unavailable: false),