Drop the GlobalShortcutsEditor from libkwineffects

As our need can be satisfied without sub-classing KShortcutsEditor
we can drop this class.

libkwineffects/CMakeLists.txt

@@ -15,7 +15,7 @@ set(kwineffects_QT_LIBS
 )
 
 set(kwineffects_KDE_LIBS
-    KF5::XmlGui # needed for KShortcutEditor
+    KF5::KConfigCore
 )
 
 set(kwineffects_XCB_LIBS

libkwineffects/kwineffects.cpp

@@ -861,15 +861,6 @@ EffectWindowGroup::~EffectWindowGroup()
 {
 }
 
-//****************************************
-// GlobalShortcutsEditor
-//****************************************
-
-GlobalShortcutsEditor::GlobalShortcutsEditor(QWidget *parent) :
-    KShortcutsEditor(parent, GlobalAction)
-{
-}
-
 /***************************************************************
  WindowQuad
 ***************************************************************/

libkwineffects/kwineffects.h

@@ -39,7 +39,6 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #include <QStack>
 
 #include <KDE/KPluginFactory>
-#include <KDE/KShortcutsEditor>
 
 #include <assert.h>
 #include <limits.h>
@@ -1696,12 +1695,6 @@ public:
     virtual EffectWindowList members() const = 0;
 };
 
-class KWIN_EXPORT GlobalShortcutsEditor : public KShortcutsEditor
-{
-public:
-    explicit GlobalShortcutsEditor(QWidget *parent);
-};
-
 
 struct GLVertex2D
 {