Revert "Fix stack trace accessor behavior."

test/mjsunit/stack-traces.js

Index: test/mjsunit/stack-traces.js
diff --git a/test/mjsunit/stack-traces.js b/test/mjsunit/stack-traces.js
index f80a627b24a87eae9fe00e5bd0a24c5b7f5af903..46a16eb87a2db857a00f8d7de060af09ffc2fa00 100644
--- a/test/mjsunit/stack-traces.js
+++ b/test/mjsunit/stack-traces.js
@@ -331,23 +331,3 @@ Error.prepareStackTrace = function() { Error.prepareStackTrace = "custom"; };
 new Error().stack;
 
 assertEquals("custom", Error.prepareStackTrace);
-
-// Check that the formatted stack trace can be set to undefined.
-error = new Error();
-error.stack = undefined;
-assertEquals(undefined, error.stack);
-
-// Check that the stack trace accessors are not forcibly set.
-var my_error = {};
-Object.freeze(my_error);
-assertThrows(function() { Error.captureStackTrace(my_error); });
-
-my_error = {};
-Object.preventExtensions(my_error);
-assertThrows(function() { Error.captureStackTrace(my_error); });
-
-var fake_error = {};
-my_error = new Error();
-var stolen_getter = Object.getOwnPropertyDescriptor(my_error, 'stack').get;
-Object.defineProperty(fake_error, 'stack', { get: stolen_getter });
-assertEquals(undefined, fake_error.stack);