[mojo-js] Converts binding unittest into layout test.

mojo/edk/js/tests/run_js_unittests.cc

Index: mojo/edk/js/tests/run_js_unittests.cc
diff --git a/mojo/edk/js/tests/run_js_unittests.cc b/mojo/edk/js/tests/run_js_unittests.cc
index bc5e242c629813cb16eae7f2d4bc50c9a9c1043c..a7b70b7f90d84778a1e45bf4f4663da470d4218a 100644
--- a/mojo/edk/js/tests/run_js_unittests.cc
+++ b/mojo/edk/js/tests/run_js_unittests.cc
@@ -45,10 +45,6 @@ void RunTest(std::string test, bool run_until_idle) {
 }
 
 // TODO(abarth): Should we autogenerate these stubs from GYP?
-TEST(JSTest, Binding) {
-  RunTest("binding_unittest.js", false);
-}
-
 TEST(JSTest, Codec) {
   RunTest("codec_unittest.js", true);
 }