Remove outdatet patch code

qgis_sip-ftbfs.patch

@@ -181,22 +181,6 @@ index f07d3ab1db..948821e91e 100644
 +    return sipGetState(sipTransferObj);
 +%End
 +};
-diff --git a/src/gui/qgsfiledownloader.h b/src/gui/qgsfiledownloader.h
-index c9276f7caf..841e4b6ee1 100644
---- a/src/gui/qgsfiledownloader.h
-+++ b/src/gui/qgsfiledownloader.h
-@@ -90,8 +90,10 @@ class GUI_EXPORT QgsFileDownloader : public QObject
-     void onSslErrors( QNetworkReply *reply, const QList<QSslError> &errors );
- #endif
- 
--  private:
-+  protected:
-     ~QgsFileDownloader();
-+
-+  private:
-     /**
-      * Abort current request and show an error if the instance has GUI
-      * notifications enabled.
 -- 
 2.12.0