[DependencyInjection] remove missing-service suggestions

| Q             | A
| ------------- | ---
| Bug fix?      | no
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | 
| License       | MIT
| Doc PR        | 

This is a rollback of 729db0fde: a change which introduced a significant performance penalty for little gain. During normal use of ContainerBuilder, `levenshtein()` is called many times each time a service is requested for the first time. In a container with just 20 services, for example, this will result in 400 calls to `levenshtein()`. That's a significant performance hit which only serves to provide some convenience for the comparatively rare situation when a developer asks for a truly non-existent service.

Simple code to demo:

```php
<?php

use Symfony\Component\DependencyInjection\ContainerBuilder;

require 'vendor/autoload.php';

$builder = new ContainerBuilder();

/** Register a service with this ContainerBuilder ... */
$service = new \stdClass();
$builder->set('my_service', $service);

/** ... then fetch it */
$fetchedService = $builder->get('my_service');
```