minor symfony#13165 Fix the implementation of deprecated Locale classes (stof)

This PR was merged into the 2.3 branch.

Discussion
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Fix the implementation of deprecated Locale classes

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

The ICU component does not exist anymore, but the BC layer was still referencing it.

Commits
-------

eb0637f Fix the implementation of deprecated Locale classes

Author: fabpot

src/Symfony/Component/Locale/Locale.php

@@ -11,7 +11,6 @@
 
 namespace Symfony\Component\Locale;
 
-use Symfony\Component\Icu\IcuData;
 use Symfony\Component\Intl\Intl;
 
 /**
@@ -173,7 +172,7 @@ public static function getIcuDataVersion()
      */
     public static function getIcuDataDirectory()
     {
-        return IcuData::getResourceDirectory();
+        return Intl::getDataDirectory();
     }
 
     /**

src/Symfony/Component/Locale/Stub/StubLocale.php

@@ -11,7 +11,6 @@
 
 namespace Symfony\Component\Locale\Stub;
 
-use Symfony\Component\Icu\IcuData;
 use Symfony\Component\Intl\Intl;
 use Symfony\Component\Intl\Locale\Locale;
 
@@ -86,7 +85,7 @@ public static function getCurrencies()
 
     public static function getDataDirectory()
     {
-        return IcuData::getResourceDirectory();
+        return Intl::getDataDirectory();
     }
 
     private static function prepareCurrencies($locale)