Revert "Use a stub in crankshaft for grow store arrays."

src/x64/interface-descriptors-x64.cc

Index: src/x64/interface-descriptors-x64.cc
diff --git a/src/x64/interface-descriptors-x64.cc b/src/x64/interface-descriptors-x64.cc
index 317a1e7a04dd6a5e7a5c9b400db090426ac598dd..f19979d4674773b9664bec255b226fc7fdb98a81 100644
--- a/src/x64/interface-descriptors-x64.cc
+++ b/src/x64/interface-descriptors-x64.cc
@@ -56,12 +56,6 @@ const Register MathPowIntegerDescriptor::exponent() {
 }
 
 
-// IC register specifications
-const Register GrowArrayElementsDescriptor::ObjectRegister() { return rax; }
-const Register GrowArrayElementsDescriptor::KeyRegister() { return rbx; }
-const Register GrowArrayElementsDescriptor::CapacityRegister() { return rcx; }
-
-
 void FastNewClosureDescriptor::Initialize(CallInterfaceDescriptorData* data) {
   Register registers[] = {rsi, rbx};
   data->Initialize(arraysize(registers), registers, NULL);