Properly remove KWIN_BUILD_OXYGEN

Left over from splitting, caused Aurorae to be the default deco.

config-kwin.h.cmake

@@ -4,7 +4,6 @@
 #cmakedefine KWIN_BUILD_SCREENEDGES 1
 #cmakedefine KWIN_BUILD_KAPPMENU 1
 #cmakedefine KWIN_BUILD_ACTIVITIES 1
-#cmakedefine KWIN_BUILD_OXYGEN 1
 #define KWIN_NAME "${KWIN_NAME}"
 #define KWIN_CONFIG "${KWIN_NAME}rc"
 #define KWIN_VERSION_STRING "${KDE4WORKSPACE_VERSION}"

decorations.cpp

@@ -40,9 +40,6 @@ DecorationPlugin::DecorationPlugin(QObject *parent)
     , m_disabled(false)
 {
     defaultPlugin = QStringLiteral("Oxygen");
-#ifndef KWIN_BUILD_OXYGEN
-    defaultPlugin = QStringLiteral("aurorae");
-#endif
 #ifdef KWIN_BUILD_DECORATIONS
     loadPlugin(QString());   // load the plugin specified in cfg file
     connect(factory(), &KDecorationFactory::recreateDecorations, this, &DecorationPlugin::recreateDecorations);