minor #11590 [Intl] Remove "Writing and Reading Resource Bundles" section (ro0NL)

This PR was submitted for the master branch but it was squashed and merged into the 4.3 branch instead (closes #11590).

Discussion
----------

[Intl] Remove "Writing and Reading Resource Bundles" section

Hi,

I propose to remove the section _Writing and Reading Resource Bundles_ entirely at https://symfony.com/doc/master/components/intl.html#writing-and-reading-resource-bundles

The `Data` namespace (https://github.com/symfony/symfony/tree/master/src/Symfony/Component/Intl/Data) is completely `@internal`, so i dont think this is really relevant for user docs. _Accessing ICU Data_ is, and should be on top IMHO.

Commits
-------

a3d8a57 [Intl] Remove \"Writing and Reading Resource Bundles\" section

Author: javiereguiluz

components/intl.rst

@@ -52,160 +52,6 @@ replace the intl classes:
 
 Composer automatically exposes these classes in the global namespace.
 
-Writing and Reading Resource Bundles
-------------------------------------
-
-The :phpclass:`ResourceBundle` class is not currently supported by this component.
-Instead, it includes a set of readers and writers for reading and writing
-arrays (or array-like objects) from/to resource bundle files. The following
-classes are supported:
-
-* `TextBundleWriter`_
-* `PhpBundleWriter`_
-* `BinaryBundleReader`_
-* `PhpBundleReader`_
-* `BufferedBundleReader`_
-* `StructuredBundleReader`_
-
-Continue reading if you are interested in how to use these classes. Otherwise
-skip this section and jump to `Accessing ICU Data`_.
-
-TextBundleWriter
-~~~~~~~~~~~~~~~~
-
-The :class:`Symfony\\Component\\Intl\\ResourceBundle\\Writer\\TextBundleWriter`
-writes an array or an array-like object to a plain-text resource bundle. The
-resulting .txt file can be converted to a binary .res file with the
-:class:`Symfony\\Component\\Intl\\ResourceBundle\\Compiler\\BundleCompiler`
-class::
-
-    use Symfony\Component\Intl\ResourceBundle\Compiler\BundleCompiler;
-    use Symfony\Component\Intl\ResourceBundle\Writer\TextBundleWriter;
-
-    $writer = new TextBundleWriter();
-    $writer->write('/path/to/bundle', 'en', [
-        'Data' => [
-            'entry1',
-            'entry2',
-            // ...
-        ],
-    ]);
-
-    $compiler = new BundleCompiler();
-    $compiler->compile('/path/to/bundle', '/path/to/binary/bundle');
-
-The command "genrb" must be available for the
-:class:`Symfony\\Component\\Intl\\ResourceBundle\\Compiler\\BundleCompiler` to
-work. If the command is located in a non-standard location, you can pass its
-path to the
-:class:`Symfony\\Component\\Intl\\ResourceBundle\\Compiler\\BundleCompiler`
-constructor.
-
-PhpBundleWriter
-~~~~~~~~~~~~~~~
-
-The :class:`Symfony\\Component\\Intl\\ResourceBundle\\Writer\\PhpBundleWriter`
-writes an array or an array-like object to a .php resource bundle::
-
-    use Symfony\Component\Intl\ResourceBundle\Writer\PhpBundleWriter;
-
-    $writer = new PhpBundleWriter();
-    $writer->write('/path/to/bundle', 'en', [
-        'Data' => [
-            'entry1',
-            'entry2',
-            // ...
-        ],
-    ]);
-
-BinaryBundleReader
-~~~~~~~~~~~~~~~~~~
-
-The :class:`Symfony\\Component\\Intl\\ResourceBundle\\Reader\\BinaryBundleReader`
-reads binary resource bundle files and returns an array or an array-like object.
-This class currently only works with the `intl extension`_ installed::
-
-    use Symfony\Component\Intl\ResourceBundle\Reader\BinaryBundleReader;
-
-    $reader = new BinaryBundleReader();
-    $data = $reader->read('/path/to/bundle', 'en');
-
-    var_dump($data['Data']['entry1']);
-
-PhpBundleReader
-~~~~~~~~~~~~~~~
-
-The :class:`Symfony\\Component\\Intl\\ResourceBundle\\Reader\\PhpBundleReader`
-reads resource bundles from .php files and returns an array or an array-like
-object::
-
-    use Symfony\Component\Intl\ResourceBundle\Reader\PhpBundleReader;
-
-    $reader = new PhpBundleReader();
-    $data = $reader->read('/path/to/bundle', 'en');
-
-    var_dump($data['Data']['entry1']);
-
-BufferedBundleReader
-~~~~~~~~~~~~~~~~~~~~
-
-The :class:`Symfony\\Component\\Intl\\ResourceBundle\\Reader\\BufferedBundleReader`
-wraps another reader, but keeps the last N reads in a buffer, where N is a
-buffer size passed to the constructor::
-
-    use Symfony\Component\Intl\ResourceBundle\Reader\BinaryBundleReader;
-    use Symfony\Component\Intl\ResourceBundle\Reader\BufferedBundleReader;
-
-    $reader = new BufferedBundleReader(new BinaryBundleReader(), 10);
-
-    // actually reads the file
-    $data = $reader->read('/path/to/bundle', 'en');
-
-    // returns data from the buffer
-    $data = $reader->read('/path/to/bundle', 'en');
-
-    // actually reads the file
-    $data = $reader->read('/path/to/bundle', 'fr');
-
-StructuredBundleReader
-~~~~~~~~~~~~~~~~~~~~~~
-
-The :class:`Symfony\\Component\\Intl\\ResourceBundle\\Reader\\StructuredBundleReader`
-wraps another reader and offers a
-:method:`Symfony\\Component\\Intl\\ResourceBundle\\Reader\\StructuredBundleReaderInterface::readEntry`
-method for reading an entry of the resource bundle without having to worry
-whether array keys are set or not. If a path cannot be resolved, ``null`` is
-returned::
-
-    use Symfony\Component\Intl\ResourceBundle\Reader\BinaryBundleReader;
-    use Symfony\Component\Intl\ResourceBundle\Reader\StructuredBundleReader;
-
-    $reader = new StructuredBundleReader(new BinaryBundleReader());
-
-    $data = $reader->read('/path/to/bundle', 'en');
-
-    // produces an error if the key "Data" does not exist
-    var_dump($data['Data']['entry1']);
-
-    // returns null if the key "Data" does not exist
-    var_dump($reader->readEntry('/path/to/bundle', 'en', ['Data', 'entry1']));
-
-Additionally, the
-:method:`Symfony\\Component\\Intl\\ResourceBundle\\Reader\\StructuredBundleReaderInterface::readEntry`
-method resolves fallback locales. For example, the fallback locale of "en_GB" is
-"en". For single-valued entries (strings, numbers etc.), the entry will be read
-from the fallback locale if it cannot be found in the more specific locale. For
-multi-valued entries (arrays), the values of the more specific and the fallback
-locale will be merged. In order to suppress this behavior, the last parameter
-``$fallback`` can be set to ``false``::
-
-    var_dump($reader->readEntry(
-        '/path/to/bundle',
-        'en',
-        ['Data', 'entry1'],
-        false
-    ));
-
 Accessing ICU Data
 ------------------
 
@@ -442,6 +288,7 @@ Learn more
     /reference/forms/types/currency
     /reference/forms/types/language
     /reference/forms/types/locale
+    /reference/forms/types/timezone
 
 .. _Packagist: https://packagist.org/packages/symfony/intl
 .. _Icu component: https://packagist.org/packages/symfony/icu