[crankshaft] Remove useless HCallFunction instruction.

src/crankshaft/x87/lithium-codegen-x87.cc

Index: src/crankshaft/x87/lithium-codegen-x87.cc
diff --git a/src/crankshaft/x87/lithium-codegen-x87.cc b/src/crankshaft/x87/lithium-codegen-x87.cc
index a8f22be732521e0f1c6546a8a312cf7decc58d07..9a8dd98fa13bd28d16f66428d55e98c8e7ceeab8 100644
--- a/src/crankshaft/x87/lithium-codegen-x87.cc
+++ b/src/crankshaft/x87/lithium-codegen-x87.cc
@@ -3947,37 +3947,6 @@ void LCodeGen::DoInvokeFunction(LInvokeFunction* instr) {
 }
 
 
-void LCodeGen::DoCallFunction(LCallFunction* instr) {
-  HCallFunction* hinstr = instr->hydrogen();
-  DCHECK(ToRegister(instr->context()).is(esi));
-  DCHECK(ToRegister(instr->function()).is(edi));
-  DCHECK(ToRegister(instr->result()).is(eax));
-
-  int arity = instr->arity();
-  ConvertReceiverMode mode = hinstr->convert_mode();
-  if (hinstr->HasVectorAndSlot()) {
-    Register slot_register = ToRegister(instr->temp_slot());
-    Register vector_register = ToRegister(instr->temp_vector());
-    DCHECK(slot_register.is(edx));
-    DCHECK(vector_register.is(ebx));
-
-    AllowDeferredHandleDereference vector_structure_check;
-    Handle<TypeFeedbackVector> vector = hinstr->feedback_vector();
-    int index = vector->GetIndex(hinstr->slot());
-
-    __ mov(vector_register, vector);
-    __ mov(slot_register, Immediate(Smi::FromInt(index)));
-
-    Handle<Code> ic =
-        CodeFactory::CallICInOptimizedCode(isolate(), arity, mode).code();
-    CallCode(ic, RelocInfo::CODE_TARGET, instr);
-  } else {
-    __ Set(eax, arity);
-    CallCode(isolate()->builtins()->Call(mode), RelocInfo::CODE_TARGET, instr);
-  }
-}
-
-
 void LCodeGen::DoCallNewArray(LCallNewArray* instr) {
   DCHECK(ToRegister(instr->context()).is(esi));
   DCHECK(ToRegister(instr->constructor()).is(edi));