Merge pull request #30 from larksuite/feature/repair_third_week

删除多余的

Author: lincg-bytedance

src/main/java/com/lark/project/service/workitem/model/WorkItemRelation.java

@@ -28,9 +28,6 @@ public class WorkItemRelation {
     @SerializedName("name")
     private String name;
 
-    @SerializedName("relation_type")
-    private Long relationType;
-
     @SerializedName("disabled")
     private Boolean disabled;