[#5010] Removing note that doesn't affect 2.6 versions

Author: weaverryan

components/intl.rst

@@ -60,85 +60,6 @@ code::
         $loader->registerPrefixFallback('/path/to/Icu/Resources/stubs');
     }
 
-.. sidebar:: ICU and Deployment Problems
-
-    .. note::
-
-        These deployment problems only affect the following Symfony versions:
-        2.3.0 to 2.3.20 versions, any 2.4.x version and 2.5.0 to 2.5.5 versions.
-
-    The intl extension internally uses the `ICU library`_ to obtain localization
-    data such as number formats in different languages, country names and more.
-    To make this data accessible to userland PHP libraries, Symfony ships a copy
-    in the `Icu component`_.
-
-    Depending on the ICU version compiled with your intl extension, a matching
-    version of that component needs to be installed. It sounds complicated,
-    but usually Composer does this for you automatically:
-
-    * 1.0.*: when the intl extension is not available
-    * 1.1.*: when intl is compiled with ICU 3.8 or higher
-    * 1.2.*: when intl is compiled with ICU 4.4 or higher
-
-    These versions are important when you deploy your application to a **server with
-    a lower ICU version** than your development machines, because deployment will
-    fail if:
-
-    * the development machines are compiled with ICU 4.4 or higher, but the
-      server is compiled with a lower ICU version than 4.4;
-    * the intl extension is available on the development machines but not on
-      the server.
-
-    For example, consider that your development machines ship ICU 4.8 and the server
-    ICU 4.2. When you run ``composer update`` on the development machine, version
-    1.2.* of the Icu component will be installed. But after deploying the
-    application, ``composer install`` will fail with the following error:
-
-    .. code-block:: bash
-
-        $ composer install
-        Loading composer repositories with package information
-        Installing dependencies from lock file
-        Your requirements could not be resolved to an installable set of packages.
-
-          Problem 1
-            - symfony/icu 1.2.x requires lib-icu >=4.4 -> the requested linked
-              library icu has the wrong version installed or is missing from your
-              system, make sure to have the extension providing it.
-
-    The error tells you that the requested version of the Icu component, version
-    1.2, is not compatible with PHP's ICU version 4.2.
-
-    One solution to this problem is to run ``composer update`` instead of
-    ``composer install``. It is highly recommended **not** to do this. The
-    ``update`` command will install the latest versions of each Composer dependency
-    to your production server and potentially break the application.
-
-    A better solution is to fix your composer.json to the version required by the
-    production server. First, determine the ICU version on the server:
-
-    .. code-block:: bash
-
-        $ php -i | grep ICU
-        ICU version => 4.2.1
-
-    Then fix the Icu component in your ``composer.json`` file to a matching version:
-
-    .. code-block:: json
-
-        "require: {
-            "symfony/icu": "1.1.*"
-        }
-
-    Set the version to
-
-    * "1.0.*" if the server does not have the intl extension installed;
-    * "1.1.*" if the server is compiled with ICU 4.2 or lower.
-
-    Finally, run ``composer update symfony/icu`` on your development machine, test
-    extensively and deploy again. The installation of the dependencies will now
-    succeed.
-
 Writing and Reading Resource Bundles
 ------------------------------------