Remove obsolete HObjectLiteral instruction.

src/x64/lithium-x64.h

Index: src/x64/lithium-x64.h
diff --git a/src/x64/lithium-x64.h b/src/x64/lithium-x64.h
index d1f7e76084af75c1b3115f35d6caf63daaeec8ff..39f078af19f2ccc3540d3355fd780a2b664bd069 100644
--- a/src/x64/lithium-x64.h
+++ b/src/x64/lithium-x64.h
@@ -150,7 +150,6 @@ class LCodeGen;
   V(NumberTagI)                                 \
   V(NumberTagU)                                 \
   V(NumberUntagD)                               \
-  V(ObjectLiteral)                              \
   V(OsrEntry)                                   \
   V(OuterContext)                               \
   V(Parameter)                                  \
@@ -2379,13 +2378,6 @@ class LArrayLiteral: public LTemplateInstruction<1, 0, 0> {
 };
 
 
-class LObjectLiteral: public LTemplateInstruction<1, 0, 0> {
- public:
-  DECLARE_CONCRETE_INSTRUCTION(ObjectLiteral, "object-literal")
-  DECLARE_HYDROGEN_ACCESSOR(ObjectLiteral)
-};
-
-
 class LRegExpLiteral: public LTemplateInstruction<1, 0, 0> {
  public:
   DECLARE_CONCRETE_INSTRUCTION(RegExpLiteral, "regexp-literal")