Revert of binary-operator-reducer: reduce mul+div(shift)

test/unittests/compiler/machine-operator-reducer-unittest.cc

Index: test/unittests/compiler/machine-operator-reducer-unittest.cc
diff --git a/test/unittests/compiler/machine-operator-reducer-unittest.cc b/test/unittests/compiler/machine-operator-reducer-unittest.cc
index 6f7ed3aca48df98ad15a36510582cb44563a85b6..7ffdfe5bf08a0e9806b74b014ffb0ded2c62f72e 100644
--- a/test/unittests/compiler/machine-operator-reducer-unittest.cc
+++ b/test/unittests/compiler/machine-operator-reducer-unittest.cc
@@ -1646,18 +1646,6 @@
   }
 }
 
-
-TEST_F(MachineOperatorReducerTest, RoundPlusTruncate) {
-  Node* p0 = Parameter(0);
-  Node* t0 = graph()->NewNode(machine()->RoundInt64ToFloat64(), p0);
-  Node* t1 = graph()->NewNode(
-      machine()->TruncateFloat64ToInt32(TruncationMode::kJavaScript), t0);
-
-  Reduction r = Reduce(t1);
-  ASSERT_TRUE(r.Changed());
-  EXPECT_THAT(r.replacement(), p0);
-}
-
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8