X87: Move work to omit unnecessary ObjectLiteral stores to the numbering pass.

src/x87/full-codegen-x87.cc

Index: src/x87/full-codegen-x87.cc
diff --git a/src/x87/full-codegen-x87.cc b/src/x87/full-codegen-x87.cc
index fffb4b27a76fc1a81482c3ff3470e0f772a6ac4a..e7eb1ab6f06c9b9dd63984a97e630d43b455c279 100644
--- a/src/x87/full-codegen-x87.cc
+++ b/src/x87/full-codegen-x87.cc
@@ -1604,11 +1604,6 @@ void FullCodeGenerator::VisitObjectLiteral(ObjectLiteral* expr) {
   // result_saved is false the result is in eax.
   bool result_saved = false;
 
-  // Mark all computed expressions that are bound to a key that
-  // is shadowed by a later occurrence of the same key. For the
-  // marked expressions, no store code is emitted.
-  expr->CalculateEmitStore(zone());
-
   AccessorTable accessor_table(zone());
   int property_index = 0;
   for (; property_index < expr->properties()->length(); property_index++) {