Fix problematic SPTPersistentCacheTests, was throwing errors when building for all archs
Fix problematic SPTPersistentCacheTests, was throwing errors when building for all archs

chrisbtreats/SPTPersistentCache,FootballAddicts/SPTPersistentCache,FootballAddicts/SPTPersistentCache,spotify/SPTPersistentCache,iOSCowboy/SPTPersistentCache,iOSCowboy/SPTPersistentCache,chrisbtreats/SPTPersistentCache,FootballAddicts/SPTPersistentCache,spotify/SPTPersistentCache,FootballAddicts/SPTPersistentCache,chrisbtreats/SPTPersistentCache,chrisbtreats/SPTPersistentCache,iOSCowboy/SPTPersistentCache,spotify/SPTPersistentCache