minor #30403 [Routing][ServiceRouterLoader] Remove an outdated comment (fancyweb)

This PR was merged into the 3.4 branch.

Discussion
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[Routing][ServiceRouterLoader] Remove an outdated comment

| Q             | A
| ------------- | ---
| Branch?       | 3.4
| Bug fix?      | no
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | -
| License       | MIT
| Doc PR        | -

Since 0043653ea8, this comment is technically false.

Commits
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a2b73489dd [Routing][ServiceRouterLoader] Remove an outdated comment

src/Symfony/Component/Routing/Loader/DependencyInjection/ServiceRouterLoader.php

@@ -17,8 +17,6 @@ use Symfony\Component\Routing\Loader\ObjectRouteLoader;
 /**
  * A route loader that executes a service to load the routes.
  *
- * This depends on the DependencyInjection component.
- *
  * @author Ryan Weaver <ryan@knpuniversity.com>
  */
 class ServiceRouterLoader extends ObjectRouteLoader

src/Symfony/Component/Routing/composer.json

@@ -38,7 +38,7 @@
         "symfony/yaml": "For using the YAML loader",
         "symfony/expression-language": "For using expression matching",
         "doctrine/annotations": "For using the annotation loader",
-        "symfony/dependency-injection": "For loading routes from a service"
+        "symfony/dependency-injection": "For using the routing resolver compiler pass"
     },
     "autoload": {
         "psr-4": { "Symfony\\Component\\Routing\\": "" },