docs: 删除无用文件

src/main/java/nju/seec/helper/api/dataanalysis/EventDTO.java

@@ -1,17 +0,0 @@
-package nju.seec.helper.api.dataanalysis;
-
-import lombok.Data;
-
-import java.time.LocalDateTime;
-
-/**
- * @author cst
- */
-@Data
-public class EventDTO {
-    private String userId;
-    private EventType type;
-    private LocalDateTime time;
-    private EventAction action;
-    private String description;
-}

src/main/java/nju/seec/helper/vo/question/BokQuestionVO.java

@@ -1,30 +0,0 @@
-package nju.seec.helper.vo.question;
-
-import com.fasterxml.jackson.annotation.JsonFormat;
-import com.fasterxml.jackson.annotation.JsonProperty;
-import lombok.Data;
-
-import java.util.Date;
-import java.util.List;
-import java.util.Map;
-
-/**
- * @author sheen
- * <p>
- * updated by cst
- */
-@Data
-public class BokQuestionVO {
-    private String id;
-    private String type;
-    private String stem;
-    private Map<String, String> options;
-    private String answer;
-    @JsonProperty(value = "key_points")
-    private String keyPoints;
-    private String analysis;
-    private List<String> tags;
-    private List<String> knowledgeId;
-    @JsonFormat(pattern = "yyyy-MM-dd hh:mm:ss")
-    private Date lastModified;
-}