Cherry-pick a799925. rdar://problem/112973142

    Unreviewed, reverting 263420@main.
    https://bugs.webkit.org/show_bug.cgi?id=259558

    'caused WPT regression in test *proxy-modifier-click-to-associated-element.tentative.html'*

    Reverted changeset:

    "Cannot select text within a label element that is linked to an input field"
    https://bugs.webkit.org/show_bug.cgi?id=96734
    https://commits.webkit.org/263420@main

    Canonical link: https://commits.webkit.org/266356@main

LayoutTests/platform/ios/TestExpectations

@@ -644,7 +644,6 @@ fast/forms/input-readonly-focus.html [ Skip ]
 fast/forms/input-readonly-select.html [ Skip ]
 fast/forms/input-select-on-click.html [ Skip ]
 fast/forms/input-step-as-double.html [ Skip ]
-fast/forms/label/label-selection.html [ Skip ]
 fast/forms/legend-overflow-hidden-hit-test.html [ Skip ]
 fast/forms/listbox-deselect-scroll.html [ Skip ]
 fast/forms/listbox-scrollbar-hit-test.html [ Skip ]

Source/WebCore/html/HTMLLabelElement.cpp

@@ -30,11 +30,8 @@
 #include "Event.h"
 #include "EventNames.h"
 #include "FormListedElement.h"
-#include "FrameSelection.h"
 #include "HTMLFormControlElement.h"
 #include "HTMLNames.h"
-#include "LocalFrame.h"
-#include "MouseEvent.h"
 #include "SelectionRestorationMode.h"
 #include "TypedElementDescendantIteratorInlines.h"
 #include <wtf/IsoMallocInlines.h>
@@ -143,14 +140,6 @@ bool HTMLLabelElement::isEventTargetedAtInteractiveDescendants(Event& event) con
 void HTMLLabelElement::defaultEventHandler(Event& event)
 {
     if (event.type() == eventNames().clickEvent && !m_processingClick) {
-        // If text of label element is selected, do not pass the event to control element.
-        // Note: a click event may be not a mouse event if created by document.createEvent().
-        if (event.isMouseEvent() && !downcast<MouseEvent>(event).isSimulated()) {
-            auto* frame = document().frame();
-            if (frame && frame->selection().selection().isRange())
-                return;
-        }
-
         auto control = this->control();
 
         // If we can't find a control or if the control received the click