Remove generated directories with 100s of files.

client/html/generated/html/dartium/WorkerLocation.dart

Index: client/html/generated/html/dartium/WorkerLocation.dart
diff --git a/client/html/generated/html/dartium/WorkerLocation.dart b/client/html/generated/html/dartium/WorkerLocation.dart
deleted file mode 100644
index dd73bffed6eb07c7af2d2d64e8aa5cfd8d4e65e7..0000000000000000000000000000000000000000
--- a/client/html/generated/html/dartium/WorkerLocation.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-
-class _WorkerLocationImpl extends _DOMTypeBase implements WorkerLocation {
-  _WorkerLocationImpl._wrap(ptr) : super._wrap(ptr);
-
-  String get hash() => _wrap(_ptr.hash);
-
-  String get host() => _wrap(_ptr.host);
-
-  String get hostname() => _wrap(_ptr.hostname);
-
-  String get href() => _wrap(_ptr.href);
-
-  String get pathname() => _wrap(_ptr.pathname);
-
-  String get port() => _wrap(_ptr.port);
-
-  String get protocol() => _wrap(_ptr.protocol);
-
-  String get search() => _wrap(_ptr.search);
-
-  String toString() {
-    return _wrap(_ptr.toString());
-  }
-}