Remove generated directories with 100s of files.

client/dom/generated/src/frog/SVGSymbolElement.dart

Index: client/dom/generated/src/frog/SVGSymbolElement.dart
diff --git a/client/dom/generated/src/frog/SVGSymbolElement.dart b/client/dom/generated/src/frog/SVGSymbolElement.dart
deleted file mode 100644
index 53e806729014ce17debb1e8bd30e069e45ff9c32..0000000000000000000000000000000000000000
--- a/client/dom/generated/src/frog/SVGSymbolElement.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-
-class _SVGSymbolElementJs extends _SVGElementJs implements SVGSymbolElement native "*SVGSymbolElement" {
-
-  // From SVGLangSpace
-
-  String xmllang;
-
-  String xmlspace;
-
-  // From SVGExternalResourcesRequired
-
-  final _SVGAnimatedBooleanJs externalResourcesRequired;
-
-  // From SVGStylable
-
-  final _SVGAnimatedStringJs className;
-
-  // Use implementation from Element.
-  // final _CSSStyleDeclarationJs style;
-
-  _CSSValueJs getPresentationAttribute(String name) native;
-
-  // From SVGFitToViewBox
-
-  final _SVGAnimatedPreserveAspectRatioJs preserveAspectRatio;
-
-  final _SVGAnimatedRectJs viewBox;
-}