Remove generated directories with 100s of files.

client/html/generated/html/frog/DOMException.dart

Index: client/html/generated/html/frog/DOMException.dart
diff --git a/client/html/generated/html/frog/DOMException.dart b/client/html/generated/html/frog/DOMException.dart
deleted file mode 100644
index f9e8041391b0f1ee6b52feb49223ea1ad47e746d..0000000000000000000000000000000000000000
--- a/client/html/generated/html/frog/DOMException.dart
+++ /dev/null
@@ -1,61 +0,0 @@
-
-class _DOMExceptionImpl implements DOMException native "*DOMException" {
-
-  static final int ABORT_ERR = 20;
-
-  static final int DATA_CLONE_ERR = 25;
-
-  static final int DOMSTRING_SIZE_ERR = 2;
-
-  static final int HIERARCHY_REQUEST_ERR = 3;
-
-  static final int INDEX_SIZE_ERR = 1;
-
-  static final int INUSE_ATTRIBUTE_ERR = 10;
-
-  static final int INVALID_ACCESS_ERR = 15;
-
-  static final int INVALID_CHARACTER_ERR = 5;
-
-  static final int INVALID_MODIFICATION_ERR = 13;
-
-  static final int INVALID_NODE_TYPE_ERR = 24;
-
-  static final int INVALID_STATE_ERR = 11;
-
-  static final int NAMESPACE_ERR = 14;
-
-  static final int NETWORK_ERR = 19;
-
-  static final int NOT_FOUND_ERR = 8;
-
-  static final int NOT_SUPPORTED_ERR = 9;
-
-  static final int NO_DATA_ALLOWED_ERR = 6;
-
-  static final int NO_MODIFICATION_ALLOWED_ERR = 7;
-
-  static final int QUOTA_EXCEEDED_ERR = 22;
-
-  static final int SECURITY_ERR = 18;
-
-  static final int SYNTAX_ERR = 12;
-
-  static final int TIMEOUT_ERR = 23;
-
-  static final int TYPE_MISMATCH_ERR = 17;
-
-  static final int URL_MISMATCH_ERR = 21;
-
-  static final int VALIDATION_ERR = 16;
-
-  static final int WRONG_DOCUMENT_ERR = 4;
-
-  final int code;
-
-  final String message;
-
-  final String name;
-
-  String toString() native;
-}