Remove exclusions for 5.x guided tours language files

Author: richard67

build/deleted_file_check.php

@@ -233,8 +233,6 @@ function readZipFile($filePath, $excludeFolders): stdClass
 // Specific files (e.g. language files) that we want to keep on upgrade
 $filesToKeep = [
     // Example: "'/administrator/language/en-GB/en-GB.com_search.ini',",
-    "'/administrator/language/en-GB/guidedtours.joomla_whatsnew_5_4.ini',",
-    "'/administrator/language/en-GB/guidedtours.joomla_whatsnew_5_4_steps.ini',",
     "'/administrator/language/en-GB/plg_behaviour_compat.ini',",
     "'/administrator/language/en-GB/plg_behaviour_compat.sys.ini',",
 ];