QDBusConnectionPrivate: Remove duplicated public sections

Seeing a public keyword may make the reader mistakenly
believe that the section above is not public.

Change-Id: I074d54ed5f6a5b5911d4c6038d33e14d2c58abe0
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>

src/dbus/qdbusconnection_p.h

@@ -136,7 +136,6 @@ public:
         DataList children;
     };
 
-public:
     // typedefs
     typedef QMultiHash<qintptr, Watcher> WatcherHash;
     typedef QHash<int, DBusTimeout *> TimeoutHash;
@@ -157,7 +156,6 @@ public:
     };
     typedef QHash<QString, WatchedServiceData> WatchedServicesHash;
 
-public:
     // public methods are entry points from other objects
     explicit QDBusConnectionPrivate(QObject *parent = nullptr);
     ~QDBusConnectionPrivate();
@@ -315,7 +313,6 @@ public:
     bool dispatchEnabled;               // protected by the dispatch lock, not the main lock
     bool isAuthenticated;
 
-public:
     // static methods
     static int findSlot(QObject *obj, const QByteArray &normalizedName, QList<QMetaType> &params,
                         QString &errorMsg);