Revert of [turbofan] Connect ObjectIsNumber to effect and control chains.

test/unittests/compiler/change-lowering-unittest.cc

Index: test/unittests/compiler/change-lowering-unittest.cc
diff --git a/test/unittests/compiler/change-lowering-unittest.cc b/test/unittests/compiler/change-lowering-unittest.cc
index dee7cb9c0b18914b385808a24b81ecfa8b2fea45..fd0766cabab589c15dc07dbb275ddb81f7dbd9e9 100644
--- a/test/unittests/compiler/change-lowering-unittest.cc
+++ b/test/unittests/compiler/change-lowering-unittest.cc
@@ -42,8 +42,7 @@
     JSOperatorBuilder javascript(zone());
     JSGraph jsgraph(isolate(), graph(), common(), &javascript, nullptr,
                     &machine);
-    GraphReducer graph_reducer(zone(), graph());
-    ChangeLowering reducer(&graph_reducer, &jsgraph);
+    ChangeLowering reducer(&jsgraph);
     return reducer.Reduce(node);
   }