diff --git a/src/__phutil_library_map__.php b/src/__phutil_library_map__.php
--- a/src/__phutil_library_map__.php
+++ b/src/__phutil_library_map__.php
@@ -2139,7 +2139,6 @@
     'PhabricatorProjectColumnTransactionQuery' => 'applications/project/query/PhabricatorProjectColumnTransactionQuery.php',
     'PhabricatorProjectConfigOptions' => 'applications/project/config/PhabricatorProjectConfigOptions.php',
     'PhabricatorProjectConfiguredCustomField' => 'applications/project/customfield/PhabricatorProjectConfiguredCustomField.php',
-    'PhabricatorProjectConstants' => 'applications/project/constants/PhabricatorProjectConstants.php',
     'PhabricatorProjectController' => 'applications/project/controller/PhabricatorProjectController.php',
     'PhabricatorProjectCustomField' => 'applications/project/customfield/PhabricatorProjectCustomField.php',
     'PhabricatorProjectCustomFieldNumericIndex' => 'applications/project/storage/PhabricatorProjectCustomFieldNumericIndex.php',
diff --git a/src/applications/project/constants/PhabricatorProjectConstants.php b/src/applications/project/constants/PhabricatorProjectConstants.php
deleted file mode 100644
--- a/src/applications/project/constants/PhabricatorProjectConstants.php
+++ /dev/null
@@ -1,3 +0,0 @@
-<?php
-
-abstract class PhabricatorProjectConstants {}