[@types/mongoose] Declare a right type for _id (#12462)

* Declare a right type for _id

* Delete the error definition

mongoose/index.d.ts

@@ -871,7 +871,7 @@ declare module "mongoose" {
     /** Hash containing current validation errors. */
     errors: Object;
     /** This documents _id. */
-    _id: any;
+    _id: mongodb.ObjectID;
     /** Boolean flag specifying if the document is new. */
     isNew: boolean;
     /** The documents schema. */

passport-local-mongoose/passport-local-mongoose-tests.ts

@@ -23,7 +23,6 @@ import { Strategy as LocalStrategy } from 'passport-local';
 
 //#region Test Models
 interface User extends PassportLocalDocument {
-    _id: string;
     username: string;
     hash: string;
     salt: string;