diff --git a/src/app/core/submission/models/workspaceitem-section-deduplication.model.ts b/src/app/core/submission/models/workspaceitem-section-deduplication.model.ts
deleted file mode 100644
index 9233780be8..0000000000
--- a/src/app/core/submission/models/workspaceitem-section-deduplication.model.ts
+++ /dev/null
@@ -1,21 +0,0 @@
-import { Item } from '../../shared/item.model';
-
-export interface WorkspaceitemSectionDetectDuplicateObject {
-  matches: {
-    [itemId: string]: DetectDuplicateMatch;
-  };
-}
-
-export interface DetectDuplicateMatch {
-  submitterDecision?: string; // [reject|verify]
-  submitterNote?: string;
-  submitterTime?: string; // (readonly)
-
-  workflowDecision?: string; // [reject|verify]
-  workflowNote?: string;
-  workflowTime?: string; // (readonly)
-
-  adminDecision?: string;
-
-  matchObject?: Item;
-}
diff --git a/src/app/core/submission/models/workspaceitem-sections.model.ts b/src/app/core/submission/models/workspaceitem-sections.model.ts
index e954c880c4..eb0839adf9 100644
--- a/src/app/core/submission/models/workspaceitem-sections.model.ts
+++ b/src/app/core/submission/models/workspaceitem-sections.model.ts
@@ -2,7 +2,6 @@ import { WorkspaceitemSectionFormObject } from './workspaceitem-section-form.mod
 import { WorkspaceitemSectionLicenseObject } from './workspaceitem-section-license.model';
 import { WorkspaceitemSectionUploadObject } from './workspaceitem-section-upload.model';
 import { WorkspaceitemSectionRecycleObject } from './workspaceitem-section-recycle.model';
-import { WorkspaceitemSectionDetectDuplicateObject } from './workspaceitem-section-deduplication.model';
 
 export class WorkspaceitemSectionsObject {
   [name: string]: WorkspaceitemSectionDataType;
@@ -13,5 +12,4 @@ export type WorkspaceitemSectionDataType
   | WorkspaceitemSectionFormObject
   | WorkspaceitemSectionLicenseObject
   | WorkspaceitemSectionRecycleObject
-  | WorkspaceitemSectionDetectDuplicateObject
   | string;