diff --git a/tests/bootstrap.php b/tests/bootstrap.php
index 2f38af997..6a36a982e 100644
--- a/tests/bootstrap.php
+++ b/tests/bootstrap.php
@@ -17,7 +17,6 @@
 
 use Cake\Chronos\Chronos;
 use Cake\Core\Configure;
-use Cake\Datasource\ConnectionManager;
 use Cake\TestSuite\ConnectionHelper;
 use Migrations\TestSuite\Migrator;
 
@@ -35,20 +34,6 @@
     Configure::write('App.fullBaseUrl', 'http://localhost');
 }
 
-// DebugKit skips settings these connection config if PHP SAPI is CLI / PHPDBG.
-// But since PagesControllerTest is run with debug enabled and DebugKit is loaded
-// in application, without setting up these config DebugKit errors out.
-ConnectionManager::setConfig('test_debug_kit', [
-    'className' => 'Cake\Database\Connection',
-    'driver' => 'Cake\Database\Driver\Sqlite',
-    'database' => TMP . 'debug_kit.sqlite',
-    'encoding' => 'utf8',
-    'cacheMetadata' => true,
-    'quoteIdentifiers' => false,
-]);
-
-ConnectionManager::alias('test_debug_kit', 'debug_kit');
-
 // Fixate now to avoid one-second-leap-issues
 Chronos::setTestNow(Chronos::now());