Remove unnecessary options from HTailCallThroughMegamorphicCache

src/arm64/lithium-arm64.cc

Index: src/arm64/lithium-arm64.cc
diff --git a/src/arm64/lithium-arm64.cc b/src/arm64/lithium-arm64.cc
index 4a89fc43449dd52c38b238250db4db3943dd85dd..c57cb689a042cf8ea9e717bbeb26a3d08db7c9c4 100644
--- a/src/arm64/lithium-arm64.cc
+++ b/src/arm64/lithium-arm64.cc
@@ -1586,17 +1586,10 @@ LInstruction* LChunkBuilder::DoTailCallThroughMegamorphicCache(
       UseFixed(instr->receiver(), LoadDescriptor::ReceiverRegister());
   LOperand* name_register =
       UseFixed(instr->name(), LoadDescriptor::NameRegister());
-  LOperand* slot = NULL;
-  LOperand* vector = NULL;
-  if (FLAG_vector_ics) {
-    slot = UseFixed(instr->slot(), VectorLoadICDescriptor::SlotRegister());
-    vector =
-        UseFixed(instr->vector(), VectorLoadICDescriptor::VectorRegister());
-  }
 
   // Not marked as call. It can't deoptimize, and it never returns.
   return new (zone()) LTailCallThroughMegamorphicCache(
-      context, receiver_register, name_register, slot, vector);
+      context, receiver_register, name_register);
 }