diff --git a/vdmos-1.el b/vdmos-1.el
deleted file mode 100644
index e01afa5ef..000000000
--- a/vdmos-1.el
+++ /dev/null
@@ -1,19 +0,0 @@
-;;; (load-file buffer-file-name)
-
-(defun mos1->vdmos(file)
-    (with-temp-file file
-      (insert-file-contents-literally file)
-      (while (re-search-forward (rx "mos1")
-                                nil t)
-        (replace-match "vdmos"))))
-
-
-(cl-loop for f in (process-lines "git" "ls-files" "--" "src/spicelib/devices/mos1")
-         for dst = (concat "src/spicelib/devices/vdmos/"
-                           (replace-regexp-in-string "mos1" "vdmos"
-                                                     (file-name-nondirectory f)))
-         initially (mkdir "src/spicelib/devices/vdmos" t)
-         do (progn
-              (copy-file f dst t)
-              (mos1->vdmos dst)
-              (process-lines "git" "add" dst)))