Unify InstanceofStub interface descriptors.

src/arm64/code-stubs-arm64.cc

Index: src/arm64/code-stubs-arm64.cc
diff --git a/src/arm64/code-stubs-arm64.cc b/src/arm64/code-stubs-arm64.cc
index f745975bca14ff14892c03d92387242de9a69fdb..ef241beced9c037689dd0e3578ae728908503673 100644
--- a/src/arm64/code-stubs-arm64.cc
+++ b/src/arm64/code-stubs-arm64.cc
@@ -97,15 +97,8 @@ void CreateAllocationSiteStub::InitializeInterfaceDescriptor(
 }
 
 
-void InstanceofStub::InitializeInterfaceDescriptor(
-    Isolate* isolate, CodeStubInterfaceDescriptor* descriptor) {
-  Register registers[] = {cp, left(), right()};
-  descriptor->Initialize(MajorKey(), ARRAY_SIZE(registers), registers);
-}
-
-
 void CallFunctionStub::InitializeInterfaceDescriptor(
-    Isolate* isolate, CodeStubInterfaceDescriptor* descriptor) {
+    CodeStubInterfaceDescriptor* descriptor) {
   // x1  function    the function to call
   Register registers[] = {cp, x1};
   descriptor->Initialize(MajorKey(), ARRAY_SIZE(registers), registers);
@@ -113,7 +106,7 @@ void CallFunctionStub::InitializeInterfaceDescriptor(
 
 
 void CallConstructStub::InitializeInterfaceDescriptor(
-    Isolate* isolate, CodeStubInterfaceDescriptor* descriptor) {
+    CodeStubInterfaceDescriptor* descriptor) {
   // x0 : number of arguments
   // x1 : the function to call
   // x2 : feedback vector