Remove generated directories with 100s of files.

client/html/generated/html/frog/SVGAnimationElement.dart

Index: client/html/generated/html/frog/SVGAnimationElement.dart
diff --git a/client/html/generated/html/frog/SVGAnimationElement.dart b/client/html/generated/html/frog/SVGAnimationElement.dart
deleted file mode 100644
index de958c9e15fa98e0bbced50d6ab56642ed028877..0000000000000000000000000000000000000000
--- a/client/html/generated/html/frog/SVGAnimationElement.dart
+++ /dev/null
@@ -1,35 +0,0 @@
-
-class _SVGAnimationElementImpl extends _SVGElementImpl implements SVGAnimationElement native "*SVGAnimationElement" {
-
-  final _SVGElementImpl targetElement;
-
-  num getCurrentTime() native;
-
-  num getSimpleDuration() native;
-
-  num getStartTime() native;
-
-  // From SVGTests
-
-  final _SVGStringListImpl requiredExtensions;
-
-  final _SVGStringListImpl requiredFeatures;
-
-  final _SVGStringListImpl systemLanguage;
-
-  bool hasExtension(String extension) native;
-
-  // From SVGExternalResourcesRequired
-
-  final _SVGAnimatedBooleanImpl externalResourcesRequired;
-
-  // From ElementTimeControl
-
-  void beginElement() native;
-
-  void beginElementAt(num offset) native;
-
-  void endElement() native;
-
-  void endElementAt(num offset) native;
-}