Revert of [turbofan] Relax effects and context for JSToNumber(x:plain-primitive).

test/unittests/compiler/js-typed-lowering-unittest.cc

Index: test/unittests/compiler/js-typed-lowering-unittest.cc
diff --git a/test/unittests/compiler/js-typed-lowering-unittest.cc b/test/unittests/compiler/js-typed-lowering-unittest.cc
index d0c465fd34c4f04eab48e4eb65a1919593c46901..2c03d885c6b6c50657e7f09eaa9aa15692ad4a5f 100644
--- a/test/unittests/compiler/js-typed-lowering-unittest.cc
+++ b/test/unittests/compiler/js-typed-lowering-unittest.cc
@@ -193,23 +193,6 @@
   EXPECT_THAT(r.replacement(),
               IsSelect(kMachAnyTagged, p0, IsTrueConstant(),
                        IsBooleanNot(IsNumberEqual(p2, IsNumberConstant(0)))));
-}
-
-
-// -----------------------------------------------------------------------------
-// JSToNumber
-
-
-TEST_F(JSTypedLoweringTest, JSToNumberWithPlainPrimitive) {
-  Node* const input = Parameter(Type::PlainPrimitive(), 0);
-  Node* const context = Parameter(Type::Any(), 1);
-  Node* const effect = graph()->start();
-  Node* const control = graph()->start();
-  Reduction r = Reduce(graph()->NewNode(javascript()->ToNumber(), input,
-                                        context, effect, control));
-  ASSERT_TRUE(r.Changed());
-  EXPECT_THAT(r.replacement(), IsToNumber(input, IsNumberConstant(0),
-                                          graph()->start(), control));
 }