diff --git a/extensions/vscode-api-tests/src/singlefolder-tests/notebook.document.test.ts b/extensions/vscode-api-tests/src/singlefolder-tests/notebook.document.test.ts
index d1fc3604d5d..b611a83953e 100644
--- a/extensions/vscode-api-tests/src/singlefolder-tests/notebook.document.test.ts
+++ b/extensions/vscode-api-tests/src/singlefolder-tests/notebook.document.test.ts
@@ -16,9 +16,6 @@ suite('Notebook Document', function () {
 				new vscode.NotebookDocumentMetadata()
 			);
 		}
-		async resolveNotebook(_document: vscode.NotebookDocument, _webview: vscode.NotebookCommunication) {
-			//
-		}
 		async saveNotebook(_document: vscode.NotebookDocument, _cancellation: vscode.CancellationToken) {
 			//
 		}
diff --git a/extensions/vscode-api-tests/src/singlefolder-tests/notebook.editor.test.ts b/extensions/vscode-api-tests/src/singlefolder-tests/notebook.editor.test.ts
index 77ac6734b16..9211b98fc1d 100644
--- a/extensions/vscode-api-tests/src/singlefolder-tests/notebook.editor.test.ts
+++ b/extensions/vscode-api-tests/src/singlefolder-tests/notebook.editor.test.ts
@@ -17,9 +17,6 @@ suite('Notebook Editor', function () {
 			);
 
 		}
-		async resolveNotebook(_document: vscode.NotebookDocument, _webview: vscode.NotebookCommunication) {
-			//
-		}
 		async saveNotebook(_document: vscode.NotebookDocument, _cancellation: vscode.CancellationToken) {
 			//
 		}
diff --git a/extensions/vscode-api-tests/src/singlefolder-tests/notebook.test.ts b/extensions/vscode-api-tests/src/singlefolder-tests/notebook.test.ts
index 5381bc67978..51468db2040 100644
--- a/extensions/vscode-api-tests/src/singlefolder-tests/notebook.test.ts
+++ b/extensions/vscode-api-tests/src/singlefolder-tests/notebook.test.ts
@@ -233,9 +233,6 @@ suite('Notebook API tests', function () {
 				};
 				return dto;
 			},
-			resolveNotebook: async (_document: vscode.NotebookDocument) => {
-				return;
-			},
 			saveNotebook: async (_document: vscode.NotebookDocument, _cancellation: vscode.CancellationToken) => {
 				return;
 			},
diff --git a/extensions/vscode-notebook-tests/src/extension.ts b/extensions/vscode-notebook-tests/src/extension.ts
index 3338813d5f9..d4cc1246f70 100644
--- a/extensions/vscode-notebook-tests/src/extension.ts
+++ b/extensions/vscode-notebook-tests/src/extension.ts
@@ -44,9 +44,6 @@ export function activate(context: vscode.ExtensionContext): any {
 
 			return dto;
 		},
-		resolveNotebook: async (_document: vscode.NotebookDocument) => {
-			return;
-		},
 		saveNotebook: async (_document: vscode.NotebookDocument, _cancellation: vscode.CancellationToken) => {
 			return;
 		},
diff --git a/src/vs/vscode.proposed.d.ts b/src/vs/vscode.proposed.d.ts
index a26219662be..5d26eeed094 100644
--- a/src/vs/vscode.proposed.d.ts
+++ b/src/vs/vscode.proposed.d.ts
@@ -1435,13 +1435,6 @@ declare module 'vscode' {
 		readonly options?: NotebookDocumentContentOptions;
 		readonly onDidChangeNotebookContentOptions?: Event<NotebookDocumentContentOptions>;
 
-		// todo@API remove! against separation of data provider and renderer
-		/**
-		 * @deprecated
-		 */
-		// eslint-disable-next-line vscode-dts-cancellation
-		resolveNotebook(document: NotebookDocument, webview: NotebookCommunication): Thenable<void>;
-
 		/**
 		 * Content providers should always use [file system providers](#FileSystemProvider) to
 		 * resolve the raw content for `uri` as the resouce is not necessarily a file on disk.
diff --git a/src/vs/workbench/api/common/extHostNotebook.ts b/src/vs/workbench/api/common/extHostNotebook.ts
index 9a0466bb8e9..f10b8c896d4 100644
--- a/src/vs/workbench/api/common/extHostNotebook.ts
+++ b/src/vs/workbench/api/common/extHostNotebook.ts
@@ -463,12 +463,6 @@ export class ExtHostNotebookController implements ExtHostNotebookShape {
 			webComm = new ExtHostWebviewCommWrapper(editorId, revivedUri, this._proxy, this._webviewInitData, document);
 			this._webviewComm.set(editorId, webComm);
 		}
-
-		if (!provider.provider.resolveNotebook) {
-			return;
-		}
-
-		await provider.provider.resolveNotebook(document.notebookDocument, webComm.contentProviderComm);
 	}
 
 	async $executeNotebookKernelFromProvider(handle: number, uri: UriComponents, kernelId: string, cellRange: ICellRange[]): Promise<void> {