Increase concurrent connections to default value (#99)

Use the default value of `256 * 1024` for the concurrency limit, this will mean that the server will be able to handle more connections.

Co-authored-by: Gusted <williamzijl7@hotmail.com>
Reviewed-on: https://codeberg.org/Codeberg/pages-server/pulls/99
Reviewed-by: 6543 <6543@noreply.codeberg.org>
Co-authored-by: Gusted <gusted@noreply.codeberg.org>
Co-committed-by: Gusted <gusted@noreply.codeberg.org>

server/setup.go

@@ -21,7 +21,6 @@ func SetupServer(handler fasthttp.RequestHandler) *fasthttp.Server {
 		NoDefaultServerHeader:        true,
 		NoDefaultDate:                true,
 		ReadTimeout:                  30 * time.Second, // needs to be this high for ACME certificates with ZeroSSL & HTTP-01 challenge
-		Concurrency:                  1024 * 32,        // TODO: adjust bottlenecks for best performance with Gitea!
 	}
 }