diff --git a/src/diagrams/flowchart/d3.js b/src/diagrams/flowchart/d3.js
deleted file mode 100644
index fe85ec12e..000000000
--- a/src/diagrams/flowchart/d3.js
+++ /dev/null
@@ -1,15 +0,0 @@
-/* global window */
-
-/* var d3;
-
-if (require) {
-  try {
-    d3 = require('d3');
-  } catch (e) {}
-}
-
-if (!d3) {
-  d3 = window.d3;
-}
-
-module.exports = d3; */
diff --git a/src/diagrams/flowchart/dagre-d3.js b/src/diagrams/flowchart/dagre-d3.js
deleted file mode 100644
index 354740e86..000000000
--- a/src/diagrams/flowchart/dagre-d3.js
+++ /dev/null
@@ -1,22 +0,0 @@
-// /* global window */
-// var Logger = require('../../logger')
-// var log = Logger.Log
-
-// var dagreD3
-// // log.debug('setting up dagre-d3');
-// if (require) {
-//   try {
-//     dagreD3 = require('dagre-d3')
-//       // log.debug('Got it (dagre-d3)');
-//   } catch (e) { log.debug('Could not load dagre-d3') }
-// }
-
-// if (!dagreD3) {
-//   dagreD3 = window.dagreD3
-// }
-
-// module.exports = dagreD3
-
-// const dagreD3 = require('dagre-d3-renderer')
-
-// module.exports = dagreD3