Revert "Merge from vscode merge-base (#22769)" (#22779)

This reverts commit 6bd0a17d3c.

extensions/ipynb/package.json

@@ -52,16 +52,6 @@
 				"priority": "default"
 			}
 		],
-    "notebookRenderer": [
-      {
-        "id": "vscode.markdown-it-cell-attachment-renderer",
-        "displayName": "Markdown it ipynb Cell Attachment renderer",
-        "entrypoint": {
-          "extends": "vscode.markdown-it-renderer",
-          "path": "./notebook-out/cellAttachmentRenderer.js"
-        }
-      }
-    ],
 		"menus": {
 			"file/newFile": [
 				{
@@ -81,9 +71,8 @@
 		}
 	},
 	"scripts": {
-		"compile": "npx gulp compile-extension:ipynb && npm run build-notebook",
-		"watch": "npx gulp watch-extension:ipynb",
-		"build-notebook": "node ./esbuild"
+		"compile": "npx gulp compile-extension:ipynb",
+		"watch": "npx gulp watch-extension:ipynb"
 	},
 	"dependencies": {
 		"@enonic/fnv-plus": "^1.3.0",
@@ -92,7 +81,6 @@
 	},
 	"devDependencies": {
 		"@jupyterlab/nbformat": "^3.2.9",
-		"@types/markdown-it": "12.2.3",
 		"@types/uuid": "^8.3.1"
 	},
 	"repository": {