diff --git a/js/extensionPrefs/js/misc/config.js.in b/js/extensionPrefs/js/misc/config.js.in
deleted file mode 100644
index e9acb4159..000000000
--- a/js/extensionPrefs/js/misc/config.js.in
+++ /dev/null
@@ -1,2 +0,0 @@
-/* The version of this package */
-var PACKAGE_VERSION = '@PACKAGE_VERSION@';
diff --git a/js/extensionPrefs/js/misc/meson.build b/js/extensionPrefs/js/misc/meson.build
deleted file mode 100644
index c235615f0..000000000
--- a/js/extensionPrefs/js/misc/meson.build
+++ /dev/null
@@ -1,8 +0,0 @@
-jsconf = configuration_data()
-jsconf.set('PACKAGE_VERSION', meson.project_version())
-
-extensions_config = configure_file(
-  input: 'config.js.in',
-  output: 'config.js',
-  configuration: jsconf
-)