Remove pointless destructor

ftrace.h

@@ -32,9 +32,8 @@ class KWIN_EXPORT FTraceLogger : public QObject
     Q_OBJECT
     Q_CLASSINFO("D-Bus Interface", "org.kde.kwin.FTrace");
     Q_PROPERTY(bool isEnabled READ isEnabled NOTIFY enabledChanged)
-public:
-    ~FTraceLogger() = default;
 
+public:
     /**
      * Enabled through DBus and logging has started
      */