make it actually build without kwayland

Change-Id: I864c771a2db7f3cdfb124729c5ae8739d2eec310

src/plasmaquick/dialog.cpp

@@ -1136,9 +1136,11 @@ bool Dialog::event(QEvent *event)
         d->updateVisibility(false);
     } else if (event->type() == QEvent::Move) {
         QMoveEvent *me = static_cast<QMoveEvent *>(event);
+#if HAVE_KWAYLAND
         if (d->shellSurface) {
             d->shellSurface->setPosition(me->pos());
         }
+#endif
     }
 
     /*Fitt's law: if the containment has margins, and the mouse cursor clicked

src/plasmaquick/dialogshadows.cpp

@@ -702,6 +702,8 @@ KWayland::Client::PlasmaShell *DialogShadows::waylandPlasmaShellInterface() cons
 {
 #if HAVE_KWAYLAND
     return d->m_wayland.plasmaShell;
+#else
+    return nullptr;
 #endif
 }