remove unused import

Author: Schniz

test/production/reading-request-body-in-middleware/index.test.ts

@@ -1,6 +1,6 @@
 import { createNext } from 'e2e-utils'
 import { NextInstance } from 'test/lib/next-modes/base'
-import { fetchViaHTTP, renderViaHTTP } from 'next-test-utils'
+import { fetchViaHTTP } from 'next-test-utils'
 
 describe('reading request body in middleware', () => {
   let next: NextInstance