Disable new theme test code for now

src/gui/Base/HButton.qml

@@ -8,15 +8,10 @@ import QtQuick.Layouts 1.12
 Button {
     id: button
 
-    property Theme ntheme: Theme {
-        target: button
-        classes: Class { name: "Button" }
-    }
-
     readonly property alias iconItem: contentItem.icon
     readonly property alias label: contentItem.label
 
-    property color backgroundColor: ntheme.data.background
+    property color backgroundColor: theme.controls.button.background
     property color focusLineColor:
         Qt.colorEqual(icon.color, theme.icons.colorize) ?
         theme.controls.button.focusedBorder :

src/gui/Pages/Chat/Composer/Composer.qml

@@ -10,11 +10,6 @@ import "../AutoCompletion"
 Rectangle {
     id: composer
 
-    property Theme ntheme: Theme {
-        target: composer
-        classes: Class { name: "Composer" }
-    }
-
     property UserAutoCompletion userCompletion
     property alias eventList: messageArea.eventList
 

src/gui/Pages/Chat/Composer/UploadButton.qml

@@ -8,8 +8,6 @@ import "../../../Base"
 import "../../../Dialogs"
 
 HButton {
-    ntheme.classes: Class { name: "UploadButton" }
-
     enabled: chat.roomInfo.can_send_messages
     icon.name: "upload-file"
     toolTip.text: