effects/screentransform: Don't read kscreen effect's config

It's fine to have the animation duration hardcoded to 250ms. The main
issue with reading kscreen effect's config is that it adds inter-effect
dependencies, which is simply not worth the trouble.

src/effects/screentransform/screentransform.cpp

@@ -8,7 +8,6 @@
 */
 // own
 #include "screentransform.h"
-#include "../kscreen/kscreenconfig.h"
 #include "kwinglutils.h"
 #include <QDebug>
 
@@ -17,9 +16,6 @@ namespace KWin
 ScreenTransformEffect::ScreenTransformEffect()
     : Effect()
 {
-    initConfig<KscreenConfig>();
-    reconfigure(ReconfigureAll);
-
     const QList<EffectScreen *> screens = effects->screens();
     for (auto screen : screens) {
         addScreen(screen);
@@ -53,7 +49,7 @@ void ScreenTransformEffect::addScreen(EffectScreen *screen)
             m_states.remove(screen);
             return;
         }
-        state.m_timeLine.setDuration(std::chrono::milliseconds(animationTime<KscreenConfig>(250)));
+        state.m_timeLine.setDuration(std::chrono::milliseconds(long(animationTime(250))));
         state.m_timeLine.setEasingCurve(QEasingCurve::OutCirc);
         state.m_lastPresentTime = std::chrono::milliseconds::zero();
         state.m_angle = transformAngle(screen->transform(), state.m_oldTransform);
@@ -90,12 +86,6 @@ void ScreenTransformEffect::removeScreen(EffectScreen *screen)
     effects->doneOpenGLContextCurrent();
 }
 
-void ScreenTransformEffect::reconfigure(ReconfigureFlags flags)
-{
-    Q_UNUSED(flags)
-    KscreenConfig::self()->read();
-}
-
 void ScreenTransformEffect::prePaintScreen(ScreenPrePaintData &data, std::chrono::milliseconds presentTime)
 {
     if (isScreenTransforming(data.screen)) {

src/effects/screentransform/screentransform.h

@@ -29,7 +29,6 @@ public:
     void prePaintWindow(EffectWindow *w, WindowPrePaintData &data, std::chrono::milliseconds presentTime) override;
     void paintWindow(EffectWindow *w, int mask, QRegion region, WindowPaintData &data) override;
 
-    void reconfigure(ReconfigureFlags flags) override;
     bool isActive() const override;
 
     int requestedEffectChainPosition() const override