Revert "Set various configurations enforcing"

MinGW 4.8 still fails in tst_qtemporarydir

This reverts commit f8267701226809f34435bff1d82b7bd143f21721

Change-Id: I0f7d6dfdd98da0290c10f2572f321a5afb7c70ec
Reviewed-by: Sergio Ahumada <sergio.ahumada@digia.com>