diff --git a/mindmaps/electricity/yaml-mindmap b/mindmaps/electricity/yaml-mindmap
deleted file mode 160000
index 4f82e58..0000000
--- a/mindmaps/electricity/yaml-mindmap
+++ /dev/null
@@ -1 +0,0 @@
-Subproject commit 4f82e5886628bd8be2802534cf77795f7f44b28f