Remove notebookeditor proposed API (#19392)

Author: karthiknadig

package-lock.json

@@ -20,8 +20,7 @@
     "publisher": "ms-python",
     "enabledApiProposals": [
         "quickPickSortByLabel",
-        "testObserver",
-        "notebookEditor"
+        "testObserver"
     ],
     "author": {
         "name": "Microsoft Corporation"
@@ -42,7 +41,7 @@
         "theme": "dark"
     },
     "engines": {
-        "vscode": "^1.67.0"
+        "vscode": "^1.68.0"
     },
     "keywords": [
         "python",
@@ -1841,7 +1840,7 @@
         "@types/sinon": "^10.0.11",
         "@types/tmp": "^0.0.33",
         "@types/uuid": "^8.3.4",
-        "@types/vscode": "~1.66.0",
+        "@types/vscode": "~1.68.0",
         "@types/winreg": "^1.2.30",
         "@types/xml2js": "^0.4.2",
         "@typescript-eslint/eslint-plugin": "^3.7.0",