It's possible that Qt is built with OpenSSL and some other backend.
The ifdefs generated are not mutually exclusive anymore, as it was
in the past. So tests should rely on the actual backend they have
working at runtime.
In the process of fixing the auto-tests, modernized feature #if-ery and
some associated compilation issues.
Fixes: QTBUG-92875
Change-Id: I2be1b924d506fd36dc4e2c6c9158b5023ff87f32
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>