[runtime] Kill %Arguments and %ArgumentsLength.

src/mips/interface-descriptors-mips.cc

Index: src/mips/interface-descriptors-mips.cc
diff --git a/src/mips/interface-descriptors-mips.cc b/src/mips/interface-descriptors-mips.cc
index 51b5e94bf8b86b17c07b9fcfa30a2008d088101d..73b4a4b50ec771d7e499c9105d8fcfd5fc4d2bf3 100644
--- a/src/mips/interface-descriptors-mips.cc
+++ b/src/mips/interface-descriptors-mips.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; }