Last cross-platform cleanup in preparation of improved ARM code for indexed

runtime/vm/flow_graph_compiler_arm64.cc

Index: runtime/vm/flow_graph_compiler_arm64.cc
===================================================================
--- runtime/vm/flow_graph_compiler_arm64.cc	(revision 36576)
+++ runtime/vm/flow_graph_compiler_arm64.cc	(working copy)
@@ -1529,42 +1529,6 @@
 }
 
 
-Address FlowGraphCompiler::ElementAddressForIntIndex(intptr_t cid,
-                                                     intptr_t index_scale,
-                                                     Register array,
-                                                     intptr_t index) {
-  UNREACHABLE();
-  return FieldAddress(array, index);
-}
-
-
-Address FlowGraphCompiler::ElementAddressForRegIndex(intptr_t cid,
-                                                     intptr_t index_scale,
-                                                     Register array,
-                                                     Register index) {
-  UNREACHABLE();
-  return FieldAddress(array, index);
-}
-
-
-Address FlowGraphCompiler::ExternalElementAddressForIntIndex(
-    intptr_t index_scale,
-    Register array,
-    intptr_t index) {
-  UNREACHABLE();
-  return FieldAddress(array, index);
-}
-
-
-Address FlowGraphCompiler::ExternalElementAddressForRegIndex(
-    intptr_t index_scale,
-    Register array,
-    Register index) {
-  UNREACHABLE();
-  return FieldAddress(array, index);
-}
-
-
 #undef __
 #define __ compiler_->assembler()->