[kwin] Remove dependency on KF5Declarative

It's a runtime dependency as PlasmaCore pulls it in automatically,
so we don't it as all the QML we currently ship uses PlasmaCore.

CMakeLists.txt

@@ -242,7 +242,6 @@ set(kwin_QT_LIBS
 )
 
 set(kwin_KDE_LIBS
-    KF5::Declarative
     KF5::ConfigCore
     KF5::CoreAddons
     KF5::Crash

scripting/CMakeLists.txt

@@ -2,7 +2,6 @@ set(kcm_kwin4_genericscripted_SRCS genericscriptedconfig.cpp)
 kde4_add_plugin( kcm_kwin4_genericscripted ${kcm_kwin4_genericscripted_SRCS} )
 target_link_libraries( kcm_kwin4_genericscripted
     KF5::ConfigWidgets #KCModule
-    KF5::Declarative
     KF5::I18n
     KF5::Service
     KF5::Plasma

scripting/scripting.cpp

@@ -35,7 +35,6 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #include <KDE/KConfigGroup>
 #include <KDE/KPluginInfo>
 #include <KDE/KServiceTypeTrader>
-#include <kdeclarative/kdeclarative.h>
 // Qt
 #include <QtDBus/QDBusConnection>
 #include <QtDBus/QDBusMessage>
@@ -543,10 +542,6 @@ void KWin::DeclarativeScript::run()
     if (running()) {
         return;
     }
-    KDeclarative::KDeclarative kdeclarative;
-    kdeclarative.setDeclarativeEngine(m_engine);
-    kdeclarative.initialize();
-    kdeclarative.setupBindings();
     qmlRegisterType<DesktopThumbnailItem>("org.kde.kwin", 2, 0, "DesktopThumbnailItem");
     qmlRegisterType<WindowThumbnailItem>("org.kde.kwin", 2, 0, "ThumbnailItem");
     qmlRegisterType<DBusCall>("org.kde.kwin", 2, 0, "DBusCall");