[turbofan] Use MachineRepresentation for PropertyCell access.

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 be1396b28f97508b18c0074c66b75b6a8e9e5648..54de75cfca48dccefc760a536ac2bb996b65a074 100644
--- a/src/compiler/access-builder.cc
+++ b/src/compiler/access-builder.cc
@@ -609,29 +609,6 @@ FieldAccess AccessBuilder::ForContextSlot(size_t index) {
   return access;
 }
 
-
-// static
-FieldAccess AccessBuilder::ForPropertyCellValue() {
-  return ForPropertyCellValue(Type::Tagged());
-}
-
-
-// static
-FieldAccess AccessBuilder::ForPropertyCellValue(Type* type) {
-  // Extract representation dimension of {type} into MachineType {r}.
-  MachineType r = MachineType::AnyTagged();
-  WriteBarrierKind w = kFullWriteBarrier;
-  if (type->Is(Type::TaggedSigned())) {
-    r = MachineType::TaggedSigned();
-    w = kNoWriteBarrier;
-  } else if (type->Is(Type::TaggedPointer())) {
-    r = MachineType::TaggedPointer();
-  }
-  FieldAccess access = {
-      kTaggedBase, PropertyCell::kValueOffset, Handle<Name>(), type, r, w};
-  return access;
-}
-
 // static
 ElementAccess AccessBuilder::ForFixedArrayElement() {
   ElementAccess access = {kTaggedBase, FixedArray::kHeaderSize, Type::Tagged(),