Drop not needed includes of QX11Info

activation.cpp

@@ -46,7 +46,6 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #include "screens.h"
 #include "useractions.h"
 #include <QDebug>
-#include <QX11Info>
 
 namespace KWin
 {

group.cpp

@@ -37,7 +37,6 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #include <kstartupinfo.h>
 #include <KWindowSystem>
 #include <QDebug>
-#include <QX11Info>
 
 
 /*

layers.cpp

@@ -90,7 +90,6 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #include "unmanaged.h"
 #include "deleted.h"
 #include "effects.h"
-#include <QX11Info>
 #include "composite.h"
 #include "screenedge.h"
 

manage.cpp

@@ -29,7 +29,6 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #include "activities.h"
 #endif
 #include "cursor.h"
-#include <QX11Info>
 #include "rules.h"
 #include "group.h"
 #include "netinfo.h"

tabbox/tabboxhandler.cpp

@@ -41,7 +41,6 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #include <QQmlEngine>
 #include <QQuickItem>
 #include <QQuickWindow>
-#include <QX11Info>
 #include <X11/Xlib.h>
 // KDE
 #include <KLocalizedString>