Revert of [turbofan] Avoid going through ArgumentsAdaptorTrampoline for CSA/C++ builtins

test/mjsunit/regress/regress-709782.js

Index: test/mjsunit/regress/regress-709782.js
diff --git a/test/mjsunit/regress/regress-709782.js b/test/mjsunit/regress/regress-709782.js
deleted file mode 100644
index e33f694ec91d727ed62da53f66512b82885101ef..0000000000000000000000000000000000000000
--- a/test/mjsunit/regress/regress-709782.js
+++ /dev/null
@@ -1,14 +0,0 @@
-// Copyright 2017 the V8 project authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-// Flags: --allow-natives-syntax
-
-var a = [0];
-function bar(x) { return x; }
-function foo() { return a.reduce(bar); }
-
-assertEquals(0, foo());
-assertEquals(0, foo());
-%OptimizeFunctionOnNextCall(foo);
-assertEquals(0, foo());