Remove generated directories with 100s of files.

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

Index: client/dom/generated/src/frog/CSSStyleDeclaration.dart
diff --git a/client/dom/generated/src/frog/CSSStyleDeclaration.dart b/client/dom/generated/src/frog/CSSStyleDeclaration.dart
deleted file mode 100644
index 6f6f1aabb18c258db5a8e2d256f102cc323d1a90..0000000000000000000000000000000000000000
--- a/client/dom/generated/src/frog/CSSStyleDeclaration.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-
-class _CSSStyleDeclarationJs extends _DOMTypeJs implements CSSStyleDeclaration native "*CSSStyleDeclaration" {
-
-  String cssText;
-
-  final int length;
-
-  final _CSSRuleJs parentRule;
-
-  _CSSValueJs getPropertyCSSValue(String propertyName) native;
-
-  String getPropertyPriority(String propertyName) native;
-
-  String getPropertyShorthand(String propertyName) native;
-
-  String getPropertyValue(String propertyName) native;
-
-  bool isPropertyImplicit(String propertyName) native;
-
-  String item(int index) native;
-
-  String removeProperty(String propertyName) native;
-
-  void setProperty(String propertyName, String value, [String priority = null]) native;
-}