drop unused file
diff --git a/codereview.settings b/codereview.settings
deleted file mode 100644
index af9ef31..0000000
--- a/codereview.settings
+++ /dev/null
@@ -1,3 +0,0 @@
-CODE_REVIEW_SERVER: http://codereview.chromium.org/
-VIEW_VC: https://github.com/dart-lang/async/commit/
-CC_LIST: reviews@dartlang.org