diff --git a/.phan/config.php b/.phan/config.php
index af3a2aa9aca..0e35d62079b 100644
--- a/.phan/config.php
+++ b/.phan/config.php
@@ -28,7 +28,6 @@ $cfg['minimum_target_php_version'] = '7.4.3';
 $cfg['file_list'] = array_merge(
 	$cfg['file_list'],
 	class_exists( Socket::class ) ? [] : [ '.phan/stubs/Socket.php' ],
-	class_exists( ReturnTypeWillChange::class ) ? [] : [ '.phan/stubs/ReturnTypeWillChange.php' ],
 	class_exists( AllowDynamicProperties::class ) ? [] : [ '.phan/stubs/AllowDynamicProperties.php' ],
 	class_exists( WeakMap::class ) ? [] : [ '.phan/stubs/WeakMap.php' ],
 	[
diff --git a/.phan/stubs/ReturnTypeWillChange.php b/.phan/stubs/ReturnTypeWillChange.php
deleted file mode 100644
index d6da963ced3..00000000000
--- a/.phan/stubs/ReturnTypeWillChange.php
+++ /dev/null
@@ -1,6 +0,0 @@
-<?php
-
-// Stub for PHP 8.1's ReturnTypeWillChange class
-#[Attribute]
-class ReturnTypeWillChange {
-}