Remove generated directories with 100s of files.

client/html/generated/html/dartium/OESVertexArrayObject.dart

Index: client/html/generated/html/dartium/OESVertexArrayObject.dart
diff --git a/client/html/generated/html/dartium/OESVertexArrayObject.dart b/client/html/generated/html/dartium/OESVertexArrayObject.dart
deleted file mode 100644
index 30bbace304010eadd366759984a29be0488c82d3..0000000000000000000000000000000000000000
--- a/client/html/generated/html/dartium/OESVertexArrayObject.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-
-class _OESVertexArrayObjectImpl extends _DOMTypeBase implements OESVertexArrayObject {
-  _OESVertexArrayObjectImpl._wrap(ptr) : super._wrap(ptr);
-
-  void bindVertexArrayOES(WebGLVertexArrayObjectOES arrayObject) {
-    _ptr.bindVertexArrayOES(_unwrap(arrayObject));
-    return;
-  }
-
-  WebGLVertexArrayObjectOES createVertexArrayOES() {
-    return _wrap(_ptr.createVertexArrayOES());
-  }
-
-  void deleteVertexArrayOES(WebGLVertexArrayObjectOES arrayObject) {
-    _ptr.deleteVertexArrayOES(_unwrap(arrayObject));
-    return;
-  }
-
-  bool isVertexArrayOES(WebGLVertexArrayObjectOES arrayObject) {
-    return _wrap(_ptr.isVertexArrayOES(_unwrap(arrayObject)));
-  }
-}