minor #58472 CS: clean some whitespaces/indentation (keradus)

This PR was squashed before being merged into the 7.2 branch.

Discussion
----------

CS: clean some whitespaces/indentation

| Q             | A
| ------------- | ---
| Branch?       | 7.2
| Bug fix?      | no
| New feature?  | no <!-- please update src/**/CHANGELOG.md files -->
| Deprecations? | no <!-- please update UPGRADE-*.md and src/**/CHANGELOG.md files -->
| Issues        | Fix CS
| License       | MIT

Commits
-------

d0f63b8afa1 CS: clean some whitespaces/indentation

Author: nicolas-grekas

Data/Generator/LanguageDataGenerator.php

@@ -142,12 +142,11 @@ protected function generateDataForLocale(BundleEntryReaderInterface $reader, str
                     $localizedNames[$language] = $name;
                 }
             }
-            $data = [
+
+            return [
                 'Names' => $names,
                 'LocalizedNames' => $localizedNames,
             ];
-
-            return $data;
         }
 
         return null;