Remove generated directories with 100s of files.

client/html/generated/html/interface/SVGAltGlyphElement.dart

Index: client/html/generated/html/interface/SVGAltGlyphElement.dart
diff --git a/client/html/generated/html/interface/SVGAltGlyphElement.dart b/client/html/generated/html/interface/SVGAltGlyphElement.dart
deleted file mode 100644
index bd89b26a726e41b6352b02afa8d9a311b62edf66..0000000000000000000000000000000000000000
--- a/client/html/generated/html/interface/SVGAltGlyphElement.dart
+++ /dev/null
@@ -1,12 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// WARNING: Do not edit - generated code.
-
-interface SVGAltGlyphElement extends SVGTextPositioningElement, SVGURIReference {
-
-  String format;
-
-  String glyphRef;
-}