Removed legacy QtUi/ClickableLabel and re-worked about dialog to use QLabel for terms of use label

Signed-off-by: Chris Galvan <chgalvan@amazon.com>

Code/Editor/Lib/Tests/test_ClickableLabel.cpp

@@ -1,58 +0,0 @@
-/*
- * Copyright (c) Contributors to the Open 3D Engine Project.
- * For complete copyright and license terms please see the LICENSE at the root of this distribution.
- *
- * SPDX-License-Identifier: Apache-2.0 OR MIT
- *
- */
-
-#include "EditorDefs.h"
-#include <AzTest/AzTest.h>
-#include <AzCore/UnitTest/TestTypes.h>
-#include <QtUI/ClickableLabel.h>
-
-#include <QApplication>
-
-using namespace AZ;
-using namespace ::testing;
-
-namespace UnitTest
-{
-    class TestingClickableLabel
-        : public ScopedAllocatorSetupFixture
-    {
-    public:
-        ClickableLabel m_clickableLabel;
-    };
-
-    TEST_F(TestingClickableLabel, CursorDoesNotUpdateWhileDisabled)
-    {
-        m_clickableLabel.setEnabled(false);
-
-        QApplication::setOverrideCursor(QCursor(Qt::BlankCursor));
-        QEnterEvent enterEvent{ QPointF(), QPointF(), QPointF() };
-        QApplication::sendEvent(&m_clickableLabel, &enterEvent);
-
-        const Qt::CursorShape cursorShape = QApplication::overrideCursor()->shape();
-        EXPECT_THAT(cursorShape, Ne(Qt::PointingHandCursor));
-        EXPECT_THAT(cursorShape, Eq(Qt::BlankCursor));
-    }
-
-    TEST_F(TestingClickableLabel, DoesNotRespondToDblClickWhileDisabled)
-    {
-        m_clickableLabel.setEnabled(false);
-
-        bool linkActivated = false;
-        QObject::connect(&m_clickableLabel, &QLabel::linkActivated, [&linkActivated]()
-        {
-            linkActivated = true;
-        });
-
-        QMouseEvent mouseEvent {
-            QEvent::MouseButtonDblClick, QPointF(),
-            Qt::LeftButton, Qt::LeftButton, Qt::NoModifier };
-        QApplication::sendEvent(&m_clickableLabel, &mouseEvent);
-
-        EXPECT_THAT(linkActivated, Eq(false));
-    }
-} // namespace UnitTest