Turn off 'extension_discovery_scan_tests' flag in settings.local.php

web/sites/default/settings.local.php

@@ -105,7 +105,7 @@
     $config['system.performance']['js']['preprocess'] = FALSE;
     $settings['cache']['bins']['render'] = 'cache.backend.null';
     $settings['cache']['bins']['dynamic_page_cache'] = 'cache.backend.null';
-    $settings['extension_discovery_scan_tests'] = TRUE;
+    $settings['extension_discovery_scan_tests'] = FALSE;
 }
 else if ( $_SERVER['HTTP_HOST'] == 'ascbsc.osu.edu' ||
             $_SERVER['HTTP_HOST'] == 'intranet.asc.ohio-state.edu' ||