Qt Designer: Remove unused code (detect by CLANG).
Qt Designer: Remove unused code (detect by CLANG).

Change-Id: Idf1da5c69f90e4ce94319fc722180988cbc44dc5
Reviewed-by: Jarek Kobus <021d51876099fe64879cc5072886d1d0ff71e1ac@digia.com>

mer-qt/qttools,mer-qt/qttools,mer-qt/qttools,mer-qt/qttools,mer-qt/qttools,mer-qt/qttools