[PlasmaComponents] Remove Config.js

It got redundant and since it wasn't declared as "pragma library" an instance
of this script was created for every ListItem, causing quite some memory consumption.

Reviewed-By: notmart

src/declarativeimports/plasmacomponents/qml/ListItem.qml

@@ -19,7 +19,6 @@
 
 import QtQuick 2.1
 import org.kde.plasma.core 2.0 as PlasmaCore
-import "private/Config.js" as Config
 
 /**
  * An item delegate for the primitive ListView component.
@@ -117,7 +116,7 @@ Item {
         property bool changeBackgroundOnPress: !listItem.checked && !listItem.sectionDelegate
         anchors.fill: background
         enabled: false
-        hoverEnabled: Config.mouseOverEnabled
+        hoverEnabled: true
 
         onClicked: listItem.clicked()
         onPressAndHold: listItem.pressAndHold()

src/declarativeimports/plasmacomponents/qml/private/Config.js

@@ -1,20 +0,0 @@
-/*
-*   Copyright (C) 2012 Marco Martin <mart@kde.org>
-*
-*   This program is free software; you can redistribute it and/or modify
-*   it under the terms of the GNU Library General Public License as
-*   published by the Free Software Foundation; either version 2, or
-*   (at your option) any later version.
-*
-*   This program is distributed in the hope that it will be useful,
-*   but WITHOUT ANY WARRANTY; without even the implied warranty of
-*   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-*   GNU Library General Public License for more details
-*
-*   You should have received a copy of the GNU Library General Public
-*   License along with this program; if not, write to the
-*   Free Software Foundation, Inc.,
-*   51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
-*/
-
-var mouseOverEnabled = true