Revert of [tests] Make assertOptimized()/assertUnoptimized() great again.

test/mjsunit/regress/regress-crbug-594183.js

Index: test/mjsunit/regress/regress-crbug-594183.js
diff --git a/test/mjsunit/regress/regress-crbug-594183.js b/test/mjsunit/regress/regress-crbug-594183.js
index 7b85f0186e26826e0002f14331e9b058f987a92e..c87e32545828e470dd851801f53a8e6d7b44f65f 100644
--- a/test/mjsunit/regress/regress-crbug-594183.js
+++ b/test/mjsunit/regress/regress-crbug-594183.js
@@ -79,8 +79,4 @@
 // seeing a property name key. It should have inferred a receiver map and
 // emitted an elements store, however.
 inferrable_store("deopt");
-
-// TurboFan is not sophisticated enough to use key type provided by ICs.
-if (!isTurboFanned(inferrable_store)) {
-  assertUnoptimized(inferrable_store);
-}
+assertUnoptimized(inferrable_store);