Breaking Change: Remove deprecated JsonOptions alias.

This has been deprecated since v4.22.x and should be replace with JsonPrintOptions which was added in v3.0.0.

See https://protobuf.dev/news/2024-10-02/#jsonoptions

PiperOrigin-RevId: 692183958

Author: zhangskz

src/google/protobuf/util/json_util.h

@@ -19,9 +19,6 @@ namespace util {
 using JsonParseOptions = ::google::protobuf::json::ParseOptions;
 using JsonPrintOptions = ::google::protobuf::json::PrintOptions;
 
-using JsonOptions ABSL_DEPRECATED("use JsonPrintOptions instead") =
-    JsonPrintOptions;
-
 using ::google::protobuf::json::BinaryToJsonStream;
 using ::google::protobuf::json::BinaryToJsonString;