Revert "Revert "Implement {Int,Uint}{8,16,32,64} and Float{32,64} typed arrays.""

runtime/vm/intrinsifier_x64.cc

Index: runtime/vm/intrinsifier_x64.cc
diff --git a/runtime/vm/intrinsifier_x64.cc b/runtime/vm/intrinsifier_x64.cc
index e7d01c7dfbbfcc0fcb2a26a9b004c49d099b4d82..559135911e072f8b7c22f438ef3487eef44f8b30 100644
--- a/runtime/vm/intrinsifier_x64.cc
+++ b/runtime/vm/intrinsifier_x64.cc
@@ -73,16 +73,6 @@ bool Intrinsifier::GrowableArray_setData(Assembler* assembler) {
 }
 
 
-bool Intrinsifier::ByteArrayBase_getLength(Assembler* assembler) {
-  return false;
-}
-
-
-bool Intrinsifier::ByteArrayBase_getIndexed(Assembler* assembler) {
-  return false;
-}
-
-
 bool Intrinsifier::Integer_addFromInteger(Assembler* assembler) {
   return false;
 }