[runtime] Kill %Arguments and %ArgumentsLength.

src/mips64/interface-descriptors-mips64.cc

Index: src/mips64/interface-descriptors-mips64.cc
diff --git a/src/mips64/interface-descriptors-mips64.cc b/src/mips64/interface-descriptors-mips64.cc
index a6036f0d6b03d8a2548a202a85a258773bc957d3..d4e0ab9c2f8037decca31018358716996ddf37e3 100644
--- a/src/mips64/interface-descriptors-mips64.cc
+++ b/src/mips64/interface-descriptors-mips64.cc
@@ -54,10 +54,6 @@ const Register StringCompareDescriptor::LeftRegister() { return a1; }
 const Register StringCompareDescriptor::RightRegister() { return a0; }
 
 
-const Register ArgumentsAccessReadDescriptor::index() { return a1; }
-const Register ArgumentsAccessReadDescriptor::parameter_count() { return a0; }
-
-
 const Register ArgumentsAccessNewDescriptor::function() { return a1; }
 const Register ArgumentsAccessNewDescriptor::parameter_count() { return a2; }
 const Register ArgumentsAccessNewDescriptor::parameter_pointer() { return a3; }