Remove generated directories with 100s of files.

client/html/generated/html/dartium/DirectoryEntrySync.dart

Index: client/html/generated/html/dartium/DirectoryEntrySync.dart
diff --git a/client/html/generated/html/dartium/DirectoryEntrySync.dart b/client/html/generated/html/dartium/DirectoryEntrySync.dart
deleted file mode 100644
index 98f178a4acb40a114406380cc8181152a217e26e..0000000000000000000000000000000000000000
--- a/client/html/generated/html/dartium/DirectoryEntrySync.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-
-class _DirectoryEntrySyncImpl extends _EntrySyncImpl implements DirectoryEntrySync {
-  _DirectoryEntrySyncImpl._wrap(ptr) : super._wrap(ptr);
-
-  DirectoryReaderSync createReader() {
-    return _wrap(_ptr.createReader());
-  }
-
-  DirectoryEntrySync getDirectory(String path, Object flags) {
-    return _wrap(_ptr.getDirectory(_unwrap(path), _unwrap(flags)));
-  }
-
-  FileEntrySync getFile(String path, Object flags) {
-    return _wrap(_ptr.getFile(_unwrap(path), _unwrap(flags)));
-  }
-
-  void removeRecursively() {
-    _ptr.removeRecursively();
-    return;
-  }
-}