examples: remove multipart example

Closes expressjs#5193
closes expressjs#5195

Author: attrid

examples/README.md

@@ -13,7 +13,6 @@ This page contains list of examples using Express.
 - [hello-world](./hello-world) - Simple request handler
 - [markdown](./markdown) - Markdown as template engine
 - [multi-router](./multi-router) - Working with multiple Express routers
-- [multipart](./multipart) - Accepting multipart-encoded forms
 - [mvc](./mvc) - MVC-style controllers
 - [online](./online) - Tracking online user activity with `online` and `redis` packages
 - [params](./params) - Working with route parameters

examples/multipart/index.js

@@ -73,7 +73,6 @@
     "method-override": "3.0.0",
     "mocha": "10.2.0",
     "morgan": "1.10.0",
-    "multiparty": "4.2.3",
     "nyc": "15.1.0",
     "pbkdf2-password": "1.2.1",
     "supertest": "6.3.0",