diff --git a/.gitmodules b/.gitmodules
index 548af57f..e69de29b 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,3 +0,0 @@
-[submodule "browser/ace"]
-	path = browser/ace
-	url = https://github.com/ajaxorg/ace-builds.git
diff --git a/browser/ace b/browser/ace
deleted file mode 160000
index 0982db48..00000000
--- a/browser/ace
+++ /dev/null
@@ -1 +0,0 @@
-Subproject commit 0982db4853e3c967756b83b70638b9761d7f801d
diff --git a/browser/electron-stylus b/browser/electron-stylus
deleted file mode 160000
index 6d86de7c..00000000
--- a/browser/electron-stylus
+++ /dev/null
@@ -1 +0,0 @@
-Subproject commit 6d86de7c6666363c6c62a1c4ef95a3c1204e10ec