Revert "Disable allocation folding when allocations tracking is on"

test/cctest/test-heap-profiler.cc

 // Copyright 2011 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 2054 matching lines @@
   CompileRun("var a = 1.2; var b = 1.0; var c = 1.0;");
   CompileRun(
     "var a = [];\n"
     "for (var i = 0; i < 5; ++i)\n"
     "    a[i] = i;\n"
     "findUntrackedObjects();\n"
     "for (var i = 0; i < 3; ++i)\n"
     "    a.shift();\n"
     "findUntrackedObjects();\n");
 }
-
-
-// If we don't disable allocation folding when allocations tracking is on, we
-// may have untracked allocations.
-TEST(DisableAllocationFolding) {
-  LocalContext env;
-  v8::HandleScope scope(env->GetIsolate());
-  HeapObjectsTracker tracker;
-  CompileRun(
-    "function literal() {"
-    "    return [1];"
-    "}"
-    "function modify_literal(literal, v) {"
-    "    literal[0] = v;"
-    "    return literal;"
-    "}"
-    "obj = modify_literal(literal(), 1);"
-    "obj = modify_literal(literal(), 1.5);"
-    "obj = modify_literal(literal(), 1);");
-}