diff --git a/cmd/apidiff/gotypesalias.go b/cmd/apidiff/gotypesalias.go
deleted file mode 100644
index 657ab4103..000000000
--- a/cmd/apidiff/gotypesalias.go
+++ /dev/null
@@ -1,12 +0,0 @@
-// Copyright 2025 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-//go:build go1.23
-
-//go:debug gotypesalias=1
-
-package main
-
-// Materialize aliases whenever the go toolchain version is after 1.23 (#69772).
-// Remove this file after go.mod >= 1.23 (which implies gotypesalias=1).
diff --git a/cmd/gorelease/gotypesalias.go b/cmd/gorelease/gotypesalias.go
deleted file mode 100644
index 657ab4103..000000000
--- a/cmd/gorelease/gotypesalias.go
+++ /dev/null
@@ -1,12 +0,0 @@
-// Copyright 2025 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-//go:build go1.23
-
-//go:debug gotypesalias=1
-
-package main
-
-// Materialize aliases whenever the go toolchain version is after 1.23 (#69772).
-// Remove this file after go.mod >= 1.23 (which implies gotypesalias=1).