The removed code was already commented out when the test was added to
the Qt repository and does not compile when uncommented as it calls
non-existant overloads of QtConcurrent::FunctionWrapper1::operator().
Change-Id: I5a02efae4b89e2815b077474aa7cd0192dcb2730
Reviewed-by: Rohan McGovern <rohan.mcgovern@nokia.com>