diff --git a/themes/modern-es-de/art_legacy/convert.sh b/themes/modern-es-de/art_legacy/convert.sh
deleted file mode 100755
index 58dca410d..000000000
--- a/themes/modern-es-de/art_legacy/convert.sh
+++ /dev/null
@@ -1,8 +0,0 @@
-#!/bin/bash
-
-EXTENSION=jpg
-
-for file in $(ls *.${EXTENSION}); do
-  echo convert $file $(basename -s $EXTENSION $file)webp
-  convert $file $(basename -s $EXTENSION $file)webp
-done