Use the same registers for StoreIC and KeyedStoreIC.

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 5b76f1ad29f287f5be20cb890661534884dc8f7e..7126628c7243a0da4a06cb279318316d7e427b3a 100644
--- a/src/arm64/code-stubs-arm64.cc
+++ b/src/arm64/code-stubs-arm64.cc
@@ -238,18 +238,6 @@ void ToBooleanStub::InitializeInterfaceDescriptor(
 }
 
 
-void ElementsTransitionAndStoreStub::InitializeInterfaceDescriptor(
-    CodeStubInterfaceDescriptor* descriptor) {
-  // x0: value
-  // x3: target map
-  // x1: key
-  // x2: receiver
-  Register registers[] = { x0, x3, x1, x2 };
-  descriptor->Initialize(ARRAY_SIZE(registers), registers,
-                         FUNCTION_ADDR(ElementsTransitionAndStoreIC_Miss));
-}
-
-
 void BinaryOpICStub::InitializeInterfaceDescriptor(
     CodeStubInterfaceDescriptor* descriptor) {
   // x1: left operand