Remove generated directories with 100s of files.

client/html/generated/html/dartium/SVGSymbolElement.dart

Index: client/html/generated/html/dartium/SVGSymbolElement.dart
diff --git a/client/html/generated/html/dartium/SVGSymbolElement.dart b/client/html/generated/html/dartium/SVGSymbolElement.dart
deleted file mode 100644
index 6b33121d1f47ab67cb65dad8f6c2ea43f281e85a..0000000000000000000000000000000000000000
--- a/client/html/generated/html/dartium/SVGSymbolElement.dart
+++ /dev/null
@@ -1,34 +0,0 @@
-
-class _SVGSymbolElementImpl extends _SVGElementImpl implements SVGSymbolElement {
-  _SVGSymbolElementImpl._wrap(ptr) : super._wrap(ptr);
-
-  // From SVGLangSpace
-
-  String get xmllang() => _wrap(_ptr.xmllang);
-
-  void set xmllang(String value) { _ptr.xmllang = _unwrap(value); }
-
-  String get xmlspace() => _wrap(_ptr.xmlspace);
-
-  void set xmlspace(String value) { _ptr.xmlspace = _unwrap(value); }
-
-  // From SVGExternalResourcesRequired
-
-  SVGAnimatedBoolean get externalResourcesRequired() => _wrap(_ptr.externalResourcesRequired);
-
-  // From SVGStylable
-
-  SVGAnimatedString get _svgClassName() => _wrap(_ptr.className);
-
-  CSSStyleDeclaration get style() => _wrap(_ptr.style);
-
-  CSSValue getPresentationAttribute(String name) {
-    return _wrap(_ptr.getPresentationAttribute(_unwrap(name)));
-  }
-
-  // From SVGFitToViewBox
-
-  SVGAnimatedPreserveAspectRatio get preserveAspectRatio() => _wrap(_ptr.preserveAspectRatio);
-
-  SVGAnimatedRect get viewBox() => _wrap(_ptr.viewBox);
-}