Remove generated directories with 100s of files.

client/html/generated/html/frog/SVGFEOffsetElement.dart

Index: client/html/generated/html/frog/SVGFEOffsetElement.dart
diff --git a/client/html/generated/html/frog/SVGFEOffsetElement.dart b/client/html/generated/html/frog/SVGFEOffsetElement.dart
deleted file mode 100644
index f37671de96812cb6abb6096dbd2cd0aba5cee565..0000000000000000000000000000000000000000
--- a/client/html/generated/html/frog/SVGFEOffsetElement.dart
+++ /dev/null
@@ -1,30 +0,0 @@
-
-class _SVGFEOffsetElementImpl extends _SVGElementImpl implements SVGFEOffsetElement native "*SVGFEOffsetElement" {
-
-  final _SVGAnimatedNumberImpl dx;
-
-  final _SVGAnimatedNumberImpl dy;
-
-  final _SVGAnimatedStringImpl in1;
-
-  // From SVGFilterPrimitiveStandardAttributes
-
-  final _SVGAnimatedLengthImpl height;
-
-  final _SVGAnimatedStringImpl result;
-
-  final _SVGAnimatedLengthImpl width;
-
-  final _SVGAnimatedLengthImpl x;
-
-  final _SVGAnimatedLengthImpl y;
-
-  // From SVGStylable
-
-  _SVGAnimatedStringImpl get _svgClassName() native "return this.className;";
-
-  // Use implementation from Element.
-  // final _CSSStyleDeclarationImpl style;
-
-  _CSSValueImpl getPresentationAttribute(String name) native;
-}