tb2761

remove duplicated assertion

... ... @@ -275,7 +275,6 @@ class CupertinoScaffold extends StatefulWidget {
assert(useRootNavigator != null);
assert(enableDrag != null);
assert(debugCheckHasMediaQuery(context));
assert(debugCheckHasMediaQuery(context));
final isCupertinoApp = Theme.of(context, shadowThemeOnly: true) == null;
String barrierLabel = '';
if (!isCupertinoApp) {
... ...