Remove redundant member

nyalldawson · nyalldawson · commit 79beb54c53bc · 2016-12-05T14:08:11.000+10:00
diff --git a/src/core/qgstaskmanager.h b/src/core/qgstaskmanager.h
@@ -221,9 +221,6 @@ class CORE_EXPORT QgsTask : public QObject, public QRunnable
      */
     void taskTerminated();
 
-    void subTaskComplete();
-
-
   protected:
 
     /**
