[runtime] Remove the now unused %StoreArrayLiteralElement.

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 79315c70a0ac4de058df1dd43329f3968dfc8189..d8067898e5e8dfcfcbd64262bcff5618a202820f 100644
--- a/src/x64/interface-descriptors-x64.cc
+++ b/src/x64/interface-descriptors-x64.cc
@@ -166,13 +166,6 @@ void CreateWeakCellDescriptor::InitializePlatformSpecific(
 }
 
 
-void StoreArrayLiteralElementDescriptor::InitializePlatformSpecific(
-    CallInterfaceDescriptorData* data) {
-  Register registers[] = {rcx, rax};
-  data->InitializePlatformSpecific(arraysize(registers), registers);
-}
-
-
 void CallFunctionDescriptor::InitializePlatformSpecific(
     CallInterfaceDescriptorData* data) {
   Register registers[] = {rdi};