Delete misplaced test file

moor/example/stream_cancellation_test.dart

@@ -1,35 +0,0 @@
-import 'package:moor/ffi.dart';
-import 'package:moor/isolate.dart';
-import 'package:moor/moor.dart';
-import 'package:test/test.dart';
-
-DatabaseConnection createConnection() =>
-    DatabaseConnection.fromExecutor(VmDatabase.memory(logStatements: true));
-
-class EmptyDb extends GeneratedDatabase {
-  EmptyDb.connect(DatabaseConnection c) : super.connect(c);
-  @override
-  final List<TableInfo> allTables = const [];
-  @override
-  final int schemaVersion = 1;
-}
-
-void main() async {
-  final isolate = await MoorIsolate.spawn(createConnection);
-  final db = EmptyDb.connect(await isolate.connect(isolateDebugLog: true));
-
-  var i = 0;
-  String slowQuery() => '''
-    with recursive slow(x) as (values(1) union all select x+1 from slow where x < 1000000)
-    select ${i++} from slow;
-  '''; // ^ to get different `StreamKey`s
-
-  await db.doWhenOpened((e) {});
-
-  final subscriptions = List.generate(
-      4, (_) => db.customSelect(slowQuery()).watch().listen(null));
-  await pumpEventQueue();
-  await Future.wait(subscriptions.map((e) => e.cancel()));
-
-  await db.customSelect('select 1').getSingle();
-}