[crankshaft] Remove useless HCallFunction instruction.

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

Index: src/crankshaft/arm/lithium-codegen-arm.cc
diff --git a/src/crankshaft/arm/lithium-codegen-arm.cc b/src/crankshaft/arm/lithium-codegen-arm.cc
index 7b2ebadf1f693df1f90e1f0c0497d58a79a8f27d..ef53fbc82a350eb03bca5bd7b25820793d8b6ef1 100644
--- a/src/crankshaft/arm/lithium-codegen-arm.cc
+++ b/src/crankshaft/arm/lithium-codegen-arm.cc
@@ -3658,37 +3658,6 @@ void LCodeGen::DoCallJSFunction(LCallJSFunction* instr) {
 }
 
 
-void LCodeGen::DoCallFunction(LCallFunction* instr) {
-  HCallFunction* hinstr = instr->hydrogen();
-  DCHECK(ToRegister(instr->context()).is(cp));
-  DCHECK(ToRegister(instr->function()).is(r1));
-  DCHECK(ToRegister(instr->result()).is(r0));
-
-  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(r3));
-    DCHECK(vector_register.is(r2));
-
-    AllowDeferredHandleDereference vector_structure_check;
-    Handle<TypeFeedbackVector> vector = hinstr->feedback_vector();
-    int index = vector->GetIndex(hinstr->slot());
-
-    __ Move(vector_register, vector);
-    __ mov(slot_register, Operand(Smi::FromInt(index)));
-
-    Handle<Code> ic =
-        CodeFactory::CallICInOptimizedCode(isolate(), arity, mode).code();
-    CallCode(ic, RelocInfo::CODE_TARGET, instr);
-  } else {
-    __ mov(r0, Operand(arity));
-    CallCode(isolate()->builtins()->Call(mode), RelocInfo::CODE_TARGET, instr);
-  }
-}
-
-
 void LCodeGen::DoCallNewArray(LCallNewArray* instr) {
   DCHECK(ToRegister(instr->context()).is(cp));
   DCHECK(ToRegister(instr->constructor()).is(r1));