Remove premature crankshaft optimization of HasInPrototypeChain.

src/crankshaft/hydrogen.cc

Index: src/crankshaft/hydrogen.cc
diff --git a/src/crankshaft/hydrogen.cc b/src/crankshaft/hydrogen.cc
index 2ff8722c8471f1368287264d2ad6b0ff3ee82675..72a56762cbe7dfaad3f9face80438e704ced3ad6 100644
--- a/src/crankshaft/hydrogen.cc
+++ b/src/crankshaft/hydrogen.cc
@@ -12740,18 +12740,6 @@ void HOptimizedGraphBuilder::GenerateMathSqrt(CallRuntime* call) {
 }
 
 
-void HOptimizedGraphBuilder::GenerateHasInPrototypeChain(CallRuntime* call) {
-  DCHECK_EQ(2, call->arguments()->length());
-  CHECK_ALIVE(VisitForValue(call->arguments()->at(0)));
-  CHECK_ALIVE(VisitForValue(call->arguments()->at(1)));
-  HValue* prototype = Pop();
-  HValue* object = Pop();
-  HHasInPrototypeChainAndBranch* result =
-      New<HHasInPrototypeChainAndBranch>(object, prototype);
-  return ast_context()->ReturnControl(result, call->id());
-}
-
-
 void HOptimizedGraphBuilder::GenerateFixedArrayGet(CallRuntime* call) {
   DCHECK(call->arguments()->length() == 2);
   CHECK_ALIVE(VisitForValue(call->arguments()->at(0)));