QNX: Use one single bar descriptor when deploying

No more generated bar descriptor file. The default bar descriptor
should be the same one used when packaging and all changes
should be visible to the user.

Change-Id: Ib0eb1dc2ad2d49e159fa1b6009bac2e0d2569c5a
Reviewed-by: Sergio Ahumada <sahumada@blackberry.com>