minor #9832 Removed an outdated section (javiereguiluz)

This PR was merged into the 4.1 branch.

Discussion
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Removed an outdated section

After merging #9515 we forgot to remove this deprecated section, as pointed by @michaelperrin in this comment: #9515 (comment)

Commits
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00ec943 Removed an outdated section

Author: javiereguiluz

routing.rst

@@ -892,15 +892,6 @@ route::
     // or, in Twig
     // {{ path('blog_show', {'slug': 'slug-value'}) }}
 
-Translating Routes
-------------------
-
-Symfony doesn't support defining routes with different contents depending on the
-user language. In those cases, you can define multiple routes per controller,
-one for each supported language; or use any of the bundles created by the
-community to implement this feature, such as `JMSI18nRoutingBundle`_ and
-`BeSimpleI18nRoutingBundle`_.
-
 Keep Going!
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