This hasn't done anything since at least Qt 5.0. It's possible it was
only used in Symbian, which we removed before the 5.0 release. This only
served to make the tst_QNetworkProxyFactory test slow.
[ChangeLog][QtNetwork][QNetworkProxy] The functions related to
QNetworkConfiguration are deprecated. They've performed no action since
Qt 5.0, so code using them can safely stop doing so.
Change-Id: I84e45059a888497fb55ffffd14d31b7c2978a04e
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
Reviewed-by: Jesus Fernandez <Jesus.Fernandez@qt.io>
Reviewed-by: Timur Pocheptsov <timur.pocheptsov@qt.io>
Reviewed-by: Alex Blasche <alexander.blasche@qt.io>