public Builder removeUserInfos(int index) {
            if (userInfosBuilder_ == null) {
                ensureUserInfosIsMutable();
                userInfos_.remove(index);
                onChanged();
            } else {
                userInfosBuilder_.remove(index);
            }
            return this;
        }
<code>repeated .im.turms.proto.UserInfo user_infos = 3;</code>
turms-server-common/src/main/java/im/turms/server/common/access/client/dto/model/message/MessageReactionGroup.java