diff --git a/tool/build.dart b/tool/build.dart
deleted file mode 100644
index 62711994..00000000
--- a/tool/build.dart
+++ /dev/null
@@ -1,4 +0,0 @@
-import 'package:build_runner/build_runner.dart';
-import 'phases.dart';
-
-main() => build(PHASES, deleteFilesByDefault: true);