[runtime] Kill %Arguments and %ArgumentsLength.

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 3fd7a6a8e6a719c831bcacb83c67653390aa6851..d1903061430f153bd6bda473355402c814096d98 100644
--- a/src/x64/interface-descriptors-x64.cc
+++ b/src/x64/interface-descriptors-x64.cc
@@ -54,10 +54,6 @@ const Register StringCompareDescriptor::LeftRegister() { return rdx; }
 const Register StringCompareDescriptor::RightRegister() { return rax; }
 
 
-const Register ArgumentsAccessReadDescriptor::index() { return rdx; }
-const Register ArgumentsAccessReadDescriptor::parameter_count() { return rax; }
-
-
 const Register ArgumentsAccessNewDescriptor::function() { return rdi; }
 const Register ArgumentsAccessNewDescriptor::parameter_count() { return rcx; }
 const Register ArgumentsAccessNewDescriptor::parameter_pointer() { return rdx; }