Merge "Remove Preferences class"

diff --combined autoload.php
index 033c4be,c1c8e3e..a5ce46b
--- 1/autoload.php
--- 2/autoload.php
+++ b/autoload.php
@@@ -364,7 -364,6 +364,7 @@@ $wgAutoloadLocalClasses = 
        'DatabaseUpdater' => __DIR__ . '/includes/installer/DatabaseUpdater.php',
        'DateFormats' => __DIR__ . '/maintenance/language/date-formats.php',
        'DateFormatter' => __DIR__ . '/includes/parser/DateFormatter.php',
 +      'DateFormatterFactory' => __DIR__ . '/includes/parser/DateFormatterFactory.php',
        'DeadendPagesPage' => __DIR__ . '/includes/specials/SpecialDeadendpages.php',
        'DeduplicateArchiveRevId' => __DIR__ . '/maintenance/deduplicateArchiveRevId.php',
        'DeferrableCallback' => __DIR__ . '/includes/deferred/DeferrableCallback.php',
@@@ -1135,7 -1134,6 +1135,6 @@@
        'PostgreSqlLockManager' => __DIR__ . '/includes/libs/lockmanager/PostgreSqlLockManager.php',
        'PostgresInstaller' => __DIR__ . '/includes/installer/PostgresInstaller.php',
        'PostgresUpdater' => __DIR__ . '/includes/installer/PostgresUpdater.php',
-       'Preferences' => __DIR__ . '/includes/Preferences.php',
        'PreferencesForm' => __DIR__ . '/includes/specials/forms/PreferencesFormLegacy.php',
        'PreferencesFormLegacy' => __DIR__ . '/includes/specials/forms/PreferencesFormLegacy.php',
        'PreferencesFormOOUI' => __DIR__ . '/includes/specials/forms/PreferencesFormOOUI.php',