Bazel: Format build file with buildifier

Change-Id: I9ed851adeb12df18eb730e7290f8bf6f891126f0

BUILD

diff --git a/BUILD b/BUILD
index c982cdb..813d6b1 100644
--- a/BUILD
+++ b/BUILD
@@ -47,9 +47,9 @@
     name = "delete-project-bundle",
     srcs = glob(["gr-delete-repo/*.js"]),
     entry_point = "gr-delete-repo/plugin.js",
+    format = "iife",
     rollup_bin = "//tools/node_tools:rollup-bin",
     sourcemap = "hidden",
-    format = "iife",
     deps = [
         "@tools_npm//rollup-plugin-node-resolve",
     ],