tests/auto/xmlpatterns.pri ensured that QTEST_XMLPATTERNS was always
defined, so the preprocessor directives using this define were
redundant.

Change-Id: Id21d8b5cc4586ce0e92c1ee4a22c582eb3f76245
Reviewed-on: http://codereview.qt-project.org/6493


Sanity-Review: Qt Sanity Bot <qt_sanity_bot@ovi.com>
Reviewed-by: Rohan McGovern <rohan.mcgovern@nokia.com>