Remove test that is nilling session manually as it's not possible anymore to not have valid session (correctly)
Remove test that is nilling session manually as it's not possible anymore to not have valid session (correctly)

opentable/AFNetworking,opentable/AFNetworking,nonoBruce/AFNetworking,AFNetworking/AFNetworking,nonoBruce/AFNetworking,AFNetworking/AFNetworking,Kjuly/AFNetworking,opentable/AFNetworking,AFNetworking/AFNetworking,nonoBruce/AFNetworking,Kjuly/AFNetworking,Kjuly/AFNetworking,FelixYin66/AFNetworking