ARM: [stubs] Optimize LoadGlobalViaContextStub and StoreGlobalViaContextStub

src/arm64/interface-descriptors-arm64.cc

Index: src/arm64/interface-descriptors-arm64.cc
diff --git a/src/arm64/interface-descriptors-arm64.cc b/src/arm64/interface-descriptors-arm64.cc
index d175de307cfb1fad118bf386b7c5a68d5515c426..de5199de0d77aabe00af7c384a88df94af435ba2 100644
--- a/src/arm64/interface-descriptors-arm64.cc
+++ b/src/arm64/interface-descriptors-arm64.cc
@@ -36,12 +36,10 @@ const Register VectorStoreICDescriptor::VectorRegister() { return x3; }
 const Register StoreTransitionDescriptor::MapRegister() { return x3; }
 
 
-const Register LoadGlobalViaContextDescriptor::DepthRegister() { return x1; }
 const Register LoadGlobalViaContextDescriptor::SlotRegister() { return x2; }
 const Register LoadGlobalViaContextDescriptor::NameRegister() { return x3; }
 
 
-const Register StoreGlobalViaContextDescriptor::DepthRegister() { return x1; }
 const Register StoreGlobalViaContextDescriptor::SlotRegister() { return x2; }
 const Register StoreGlobalViaContextDescriptor::NameRegister() { return x3; }
 const Register StoreGlobalViaContextDescriptor::ValueRegister() { return x0; }