public static MutationProto toMutationNoData(final MutationType type, final Mutation mutation)
    throws IOException {
    MutationProto.Builder builder = MutationProto.newBuilder();
    return toMutationNoData(type, mutation, builder);
  }
Create a protocol buffer MutationProto based on a client Mutation. Does NOT include data.
Understanding is that the Cell will be transported other than via protobuf.
@return a protobuf'd Mutation
hbase-client/src/main/java/org/apache/hadoop/hbase/shaded/protobuf/ProtobufUtil.java