diff --git a/src/google/protobuf/descriptor.cc b/src/google/protobuf/descriptor.cc
index c64a42dc94..983ebef172 100644
--- a/src/google/protobuf/descriptor.cc
+++ b/src/google/protobuf/descriptor.cc
@@ -3961,7 +3961,8 @@ void FieldDescriptor::DebugString(
 
   // Label is omitted for maps, oneof, and plain proto3 fields.
   if (is_map() || real_containing_oneof() ||
-      (!is_required() && !is_repeated() && !has_optional_keyword())) {
+      (!is_required() && !is_repeated() && !proto3_optional_ &&
+       file()->edition() == Edition::EDITION_PROTO3)) {
     label.clear();
   }
   // Label is omitted for optional and required fields under editions.
@@ -4283,12 +4284,6 @@ bool FieldDescriptor::legacy_enum_field_treated_as_closed() const {
           enum_type()->is_closed());
 }
 
-bool FieldDescriptor::has_optional_keyword() const {
-  return proto3_optional_ ||
-         (file()->edition() == Edition::EDITION_PROTO2 && !is_required() &&
-          !is_repeated() && !containing_oneof());
-}
-
 FieldDescriptor::CppStringType FieldDescriptor::CalculateCppStringType() const {
   ABSL_DCHECK(cpp_type() == FieldDescriptor::CPPTYPE_STRING);
 
diff --git a/src/google/protobuf/descriptor.h b/src/google/protobuf/descriptor.h
index 6a361f6c4c..cac13c7d74 100644
--- a/src/google/protobuf/descriptor.h
+++ b/src/google/protobuf/descriptor.h
@@ -1137,11 +1137,6 @@ class PROTOBUF_EXPORT FieldDescriptor : private internal::SymbolBase,
   int legacy_proto_ctype() const { return legacy_proto_ctype_; }
   bool has_legacy_proto_ctype() const;
 
-  // Returns true if this field was syntactically written with "optional" in the
-  // .proto file. Excludes singular proto3 fields that do not have a label.
-  ABSL_DEPRECATED("Use has_presence() instead.")
-  bool has_optional_keyword() const;
-
   // Get the merged features that apply to this field.  These are specified in
   // the .proto file through the feature options in the message definition.
   // Allowed features are defined by Features in descriptor.proto, along with