Remove generated directories with 100s of files.

client/html/generated/html/frog/SVGMatrix.dart

Index: client/html/generated/html/frog/SVGMatrix.dart
diff --git a/client/html/generated/html/frog/SVGMatrix.dart b/client/html/generated/html/frog/SVGMatrix.dart
deleted file mode 100644
index eed744a4a602435886388e89c6cf8403acceccaa..0000000000000000000000000000000000000000
--- a/client/html/generated/html/frog/SVGMatrix.dart
+++ /dev/null
@@ -1,37 +0,0 @@
-
-class _SVGMatrixImpl implements SVGMatrix native "*SVGMatrix" {
-
-  num a;
-
-  num b;
-
-  num c;
-
-  num d;
-
-  num e;
-
-  num f;
-
-  _SVGMatrixImpl flipX() native;
-
-  _SVGMatrixImpl flipY() native;
-
-  _SVGMatrixImpl inverse() native;
-
-  _SVGMatrixImpl multiply(_SVGMatrixImpl secondMatrix) native;
-
-  _SVGMatrixImpl rotate(num angle) native;
-
-  _SVGMatrixImpl rotateFromVector(num x, num y) native;
-
-  _SVGMatrixImpl scale(num scaleFactor) native;
-
-  _SVGMatrixImpl scaleNonUniform(num scaleFactorX, num scaleFactorY) native;
-
-  _SVGMatrixImpl skewX(num angle) native;
-
-  _SVGMatrixImpl skewY(num angle) native;
-
-  _SVGMatrixImpl translate(num x, num y) native;
-}