This reverts commit ab1e5075

. That was
supposed to be a minor behavior change, but ends up having visible
effects such as QtXmlPatterns xs:dateTime type now reporting sub-second
fractions. So we're reverting in 5.10 and re-applying in 5.11.

Change-Id: I741e49459c9a688c1c329d6cbd521cd4a0b2aa84
Reviewed-by: Lars Knoll <lars.knoll@qt.io>