QMacStyle - remove vertical adjustment for inactive tab

While it worked as expected with beta, with final release this thing
looks wrong again, especially in the dark mode.

Change-Id: I6857344de897e0f39d9d8e66431635dbe2f4d077
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
(cherry picked from commit abee4cdd5925a8513f51784754fca8fa35031732)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>

src/plugins/styles/mac/qmacstyle_mac.mm

@@ -4035,8 +4035,6 @@ void QMacStyle::drawControl(ControlElement ce, const QStyleOption *opt, QPainter
                         rAdjusted.origin.x -= 3;
                         rAdjusted.size.width += 6;
                         if (isBigSurOrAbove) {
-                            rAdjusted.origin.y -= 1;
-                            rAdjusted.size.height += 1;
                             if (tp == QStyleOptionTab::End)
                                 rAdjusted.origin.x -= 2;
                         }