Remove generated directories with 100s of files.

client/html/generated/html/dartium/SVGElement.dart

Index: client/html/generated/html/dartium/SVGElement.dart
diff --git a/client/html/generated/html/dartium/SVGElement.dart b/client/html/generated/html/dartium/SVGElement.dart
deleted file mode 100644
index 9016dfeecf1aaee59a8c2a7afd94387139f4bda2..0000000000000000000000000000000000000000
--- a/client/html/generated/html/dartium/SVGElement.dart
+++ /dev/null
@@ -1,16 +0,0 @@
-
-class _SVGElementImpl extends _ElementImpl implements SVGElement {
-  _SVGElementImpl._wrap(ptr) : super._wrap(ptr);
-
-  String get id() => _wrap(_ptr.id);
-
-  void set id(String value) { _ptr.id = _unwrap(value); }
-
-  SVGSVGElement get ownerSVGElement() => _wrap(_ptr.ownerSVGElement);
-
-  SVGElement get viewportElement() => _wrap(_ptr.viewportElement);
-
-  String get xmlbase() => _wrap(_ptr.xmlbase);
-
-  void set xmlbase(String value) { _ptr.xmlbase = _unwrap(value); }
-}