Revert of Mojo JS bindings: change module loading solution.

mojo/public/interfaces/bindings/BUILD.gn

Index: mojo/public/interfaces/bindings/BUILD.gn
diff --git a/mojo/public/interfaces/bindings/BUILD.gn b/mojo/public/interfaces/bindings/BUILD.gn
index c2cadcd73630e4729db1470cdd5e6f0823583c22..eab75c1e9bdae26c6f69035a2bc7bc3d8aefdc67 100644
--- a/mojo/public/interfaces/bindings/BUILD.gn
+++ b/mojo/public/interfaces/bindings/BUILD.gn
@@ -15,15 +15,3 @@
   export_define = "MOJO_CPP_BINDINGS_IMPLEMENTATION"
   export_header = "mojo/public/cpp/bindings/bindings_export.h"
 }
-
-# TODO(yzshen): Remove this target and use the one above once
-# |use_new_js_bindings| becomes true by default.
-mojom("new_bindings") {
-  visibility = []
-  sources = [
-    "new_bindings/interface_control_messages.mojom",
-    "new_bindings/pipe_control_messages.mojom",
-  ]
-
-  use_new_js_bindings = true
-}