message: Removed redundant check
  Suspense availability is checked in Freeze component
diff: @@ -113,7 +113,7 @@ class NavigationStack extends React.Component<NavigationStackProps, NavigationSt
  key={key}
  crumb={crumb}
  sceneKey={key}
  - freezable={typeof React.Suspense !== 'undefined' && rest}
  + freezable={rest}
  unmountStyle={unmountStyle}
  crumbStyle={crumbStyle}
  hidesTabBar={hidesTabBar}
  