[runtime] Remove obsolete %ObjectEquals runtime entry.

src/full-codegen/arm64/full-codegen-arm64.cc

Index: src/full-codegen/arm64/full-codegen-arm64.cc
diff --git a/src/full-codegen/arm64/full-codegen-arm64.cc b/src/full-codegen/arm64/full-codegen-arm64.cc
index f7d21ef71590377bca20a39cabf78de800055264..54378d006504fd752cfbcedb3218f58b86f998d0 100644
--- a/src/full-codegen/arm64/full-codegen-arm64.cc
+++ b/src/full-codegen/arm64/full-codegen-arm64.cc
@@ -2934,30 +2934,6 @@ void FullCodeGenerator::EmitIsJSProxy(CallRuntime* expr) {
 }
 
 
-void FullCodeGenerator::EmitObjectEquals(CallRuntime* expr) {
-  ZoneList<Expression*>* args = expr->arguments();
-  DCHECK(args->length() == 2);
-
-  // Load the two objects into registers and perform the comparison.
-  VisitForStackValue(args->at(0));
-  VisitForAccumulatorValue(args->at(1));
-
-  Label materialize_true, materialize_false;
-  Label* if_true = NULL;
-  Label* if_false = NULL;
-  Label* fall_through = NULL;
-  context()->PrepareTest(&materialize_true, &materialize_false,
-                         &if_true, &if_false, &fall_through);
-
-  __ Pop(x1);
-  __ Cmp(x0, x1);
-  PrepareForBailoutBeforeSplit(expr, true, if_true, if_false);
-  Split(eq, if_true, if_false, fall_through);
-
-  context()->Plug(if_true, if_false);
-}
-
-
 void FullCodeGenerator::EmitClassOf(CallRuntime* expr) {
   ASM_LOCATION("FullCodeGenerator::EmitClassOf");
   ZoneList<Expression*>* args = expr->arguments();