qdoc: Fixed to remove extranious markup tags.
qdoc: Fixed to remove extranious markup tags.

Task-numberr: QTBUG-20474
(cherry picked from commit b17ae5f8b26838288d7841b4b0651e435198396f)

Change-Id: Iabc7f3009e418bac762c29c86744e8155ab6ca15
Reviewed-on: http://codereview.qt.nokia.com/2035
Reviewed-by: Martin Smith <a8cc6484db2755056ccf1c457da8ca771f895dea@nokia.com>

kobolabs/qtdoc,kobolabs/qtdoc,kobolabs/qtdoc,kobolabs/qtdoc