Remove strong mode support from materialized literals.

src/crankshaft/hydrogen.cc

Index: src/crankshaft/hydrogen.cc
diff --git a/src/crankshaft/hydrogen.cc b/src/crankshaft/hydrogen.cc
index a809a83da4c10c368cb3329208a1c01b07ccd770..26322598e7927d558d3ff517d2cea5e90407939d 100644
--- a/src/crankshaft/hydrogen.cc
+++ b/src/crankshaft/hydrogen.cc
@@ -6054,9 +6054,8 @@ void HOptimizedGraphBuilder::VisitArrayLiteral(ArrayLiteral* expr) {
     Handle<Object> raw_boilerplate;
     ASSIGN_RETURN_ON_EXCEPTION_VALUE(
         isolate(), raw_boilerplate,
-        Runtime::CreateArrayLiteralBoilerplate(
-            isolate(), literals, expr->constant_elements(),
-            is_strong(function_language_mode())),
+        Runtime::CreateArrayLiteralBoilerplate(isolate(), literals,
+                                               expr->constant_elements()),
         Bailout(kArrayBoilerplateCreationFailed));
 
     boilerplate_object = Handle<JSObject>::cast(raw_boilerplate);