diff --git a/src/vs/workbench/contrib/notebook/common/model/cellEdit.ts b/src/vs/workbench/contrib/notebook/common/model/cellEdit.ts
index 9a9c8c2a3d6df45fde2ffff6e3d73b7c8e41f436..61453ae9a742bfb8e1e4412fd49cd7ef7e05bba3 100644
--- a/src/vs/workbench/contrib/notebook/common/model/cellEdit.ts
+++ b/src/vs/workbench/contrib/notebook/common/model/cellEdit.ts
@@ -18,70 +18,6 @@ export interface ITextCellEditingDelegate {
 	updateCellMetadata?(index: number, newMetadata: NotebookCellMetadata): void;
 }
 
-
-export class InsertCellEdit implements IResourceUndoRedoElement {
-	type: UndoRedoElementType.Resource = UndoRedoElementType.Resource;
-	label: string = 'Insert Cell';
-	constructor(
-		public resource: URI,
-		private insertIndex: number,
-		private cell: NotebookCellTextModel,
-		private editingDelegate: ITextCellEditingDelegate,
-		private beforedSelections: number[] | undefined,
-		private endSelections: number[] | undefined
-	) {
-	}
-
-	undo(): void {
-		if (!this.editingDelegate.deleteCell) {
-			throw new Error('Notebook Delete Cell not implemented for Undo/Redo');
-		}
-
-		this.editingDelegate.deleteCell(this.insertIndex, this.beforedSelections);
-	}
-	redo(): void {
-		if (!this.editingDelegate.insertCell) {
-			throw new Error('Notebook Insert Cell not implemented for Undo/Redo');
-		}
-
-		this.editingDelegate.insertCell(this.insertIndex, this.cell, this.endSelections);
-	}
-}
-
-export class DeleteCellEdit implements IResourceUndoRedoElement {
-	type: UndoRedoElementType.Resource = UndoRedoElementType.Resource;
-	label: string = 'Delete Cell';
-	constructor(
-		public resource: URI,
-		private insertIndex: number,
-		private _cell: NotebookCellTextModel,
-		private editingDelegate: ITextCellEditingDelegate,
-		private beforedSelections: number[] | undefined,
-		private endSelections: number[] | undefined
-	) {
-
-		// save inmem text to `ICell`
-		// no needed any more as the text buffer is transfered to `raw_cell`
-		// this._rawCell.source = [cell.getText()];
-	}
-
-	undo(): void {
-		if (!this.editingDelegate.insertCell) {
-			throw new Error('Notebook Insert Cell not implemented for Undo/Redo');
-		}
-
-		this.editingDelegate.insertCell(this.insertIndex, this._cell, this.beforedSelections);
-	}
-
-	redo(): void {
-		if (!this.editingDelegate.deleteCell) {
-			throw new Error('Notebook Delete Cell not implemented for Undo/Redo');
-		}
-
-		this.editingDelegate.deleteCell(this.insertIndex, this.endSelections);
-	}
-}
-
 export class MoveCellEdit implements IResourceUndoRedoElement {
 	type: UndoRedoElementType.Resource = UndoRedoElementType.Resource;
 	label: string = 'Move Cell';