message: Remove outdated link to Qt build instructions
diff: @@ -4,8 +4,6 @@ The Qt Toolkit is Copyright (C) 2015 The Qt Company Ltd.
  [Qt](https://github.com/stinb/qt5) is used under the terms of the
  [LGPLv3](https://raw.githubusercontent.com/stinb/qt5/gitahead/LICENSE.LGPLv3).
  -Follow these [directions](https://github.com/stinb/qt5/wiki/Build-Qt-for-GitAhead)
  -to replace Qt libraries with your own build of Qt.
  ----
  