VCS: Initially enable menus.

Fix breakage introduced by:
5923733889

src/plugins/cvs/cvsplugin.cpp

@@ -398,10 +398,6 @@ bool CVSPlugin::initialize(const QStringList & /*arguments */, QString *errorMes
     return true;
 }
 
-void CVSPlugin::extensionsInitialized()
-{
-}
-
 bool CVSPlugin::submitEditorAboutToClose(VCSBase::VCSBaseSubmitEditor *submitEditor)
 {
     if (!isCommitEditorOpen())

src/plugins/cvs/cvsplugin.h

@@ -84,7 +84,6 @@ public:
     ~CVSPlugin();
 
     virtual bool initialize(const QStringList &arguments, QString *error_message);
-    virtual void extensionsInitialized();
 
     void cvsDiff(const QString &workingDir, const QStringList &files);