test: remove tspl on 2283 test (#4301)

Author: Uzlopak

test/issue-2283.js

@@ -1,26 +1,23 @@
 'use strict'
 
-const { tspl } = require('@matteo.collina/tspl')
 const { describe, test } = require('node:test')
 const { FormData, Response } = require('..')
 
 describe('https://github.com/nodejs/undici/issues/2283', () => {
   test('preserve full type when parsing multipart/form-data', async (t) => {
-    t = tspl(t, { plan: 2 })
     const testBlob = new Blob(['123'], { type: 'text/plain;charset=utf-8' })
     const fd = new FormData()
     fd.set('x', testBlob)
     const res = new Response(fd)
-    res.clone().text().then(body =>
-      // Just making sure that it contains ;charset=utf-8
-      t.ok(body.includes('text/plain;charset=utf-8'))
-    )
 
-    new Response(fd).formData().then(fd => {
-      // returns just 'text/plain'
-      t.ok(fd.get('x').type === 'text/plain;charset=utf-8')
-    })
+    const body = await res.clone().text()
 
-    await t.completed
+    // Just making sure that it contains ;charset=utf-8
+    t.assert.ok(body.includes('text/plain;charset=utf-8'))
+
+    const formData = await new Response(fd).formData()
+
+    // returns just 'text/plain'
+    t.assert.ok(formData.get('x').type === 'text/plain;charset=utf-8')
   })
 })