Revert 13117: "Enable stub generation using Hydrogen/Lithium (again)"

src/x64/code-stubs-x64.cc

Index: src/x64/code-stubs-x64.cc
diff --git a/src/x64/code-stubs-x64.cc b/src/x64/code-stubs-x64.cc
index 2c39a0c80776e04ca4d7b8e273a7daa624723b5d..970571840b5cd49a3ec99859a62cfb860c5616aa 100644
--- a/src/x64/code-stubs-x64.cc
+++ b/src/x64/code-stubs-x64.cc
@@ -36,24 +36,6 @@
 namespace v8 {
 namespace internal {
 
-
-CodeStubInterfaceDescriptor*
-    KeyedLoadFastElementStub::GetInterfaceDescriptor(Isolate* isolate) {
-  static CodeStubInterfaceDescriptor* result = NULL;
-  if (result == NULL) {
-    Handle<Code> miss = isolate->builtins()->KeyedLoadIC_Miss();
-    static Register registers[] = { rdx, rax };
-    static CodeStubInterfaceDescriptor info = {
-      2,
-      registers,
-      miss
-    };
-    result = &info;
-  }
-  return result;
-}
-
-
 #define __ ACCESS_MASM(masm)
 
 void ToNumberStub::Generate(MacroAssembler* masm) {