Revert of [turbofan] inline %StringIteratorPrototype%.next in JSBuiltinReducer.

src/compiler/access-builder.cc

Index: src/compiler/access-builder.cc
diff --git a/src/compiler/access-builder.cc b/src/compiler/access-builder.cc
index 530143440d52e4726bbceeabc2fe495023c7886e..f99f51ae236e1166cb09462b0141b3f939186405 100644
--- a/src/compiler/access-builder.cc
+++ b/src/compiler/access-builder.cc
@@ -548,24 +548,6 @@
   return access;
 }
 
-// static
-FieldAccess AccessBuilder::ForJSStringIteratorString() {
-  FieldAccess access = {
-      kTaggedBase,    JSStringIterator::kStringOffset, Handle<Name>(),
-      Type::String(), MachineType::TaggedPointer(),    kPointerWriteBarrier};
-  return access;
-}
-
-// static
-FieldAccess AccessBuilder::ForJSStringIteratorIndex() {
-  FieldAccess access = {kTaggedBase,
-                        JSStringIterator::kNextIndexOffset,
-                        Handle<Name>(),
-                        TypeCache::Get().kStringLengthType,
-                        MachineType::TaggedSigned(),
-                        kNoWriteBarrier};
-  return access;
-}
 
 // static
 FieldAccess AccessBuilder::ForValue() {