Remove unused org.chromium.UpdateEngine.service

BUG=chromium:305600
TEST=cbuildbot link-full daisy-full link-release daisy-release
CQ-DEPEND=CL:179295

Change-Id: I92387d3033bb3dbdbbf1d25b22906965ac6e084b
Reviewed-on: https://chromium-review.googlesource.com/179312
Tested-by: Ryo Hashimoto <hashimoto@chromium.org>
Reviewed-by: Don Garrett <dgarrett@chromium.org>
Commit-Queue: Ryo Hashimoto <hashimoto@chromium.org>
diff --git a/org.chromium.UpdateEngine.service b/org.chromium.UpdateEngine.service
deleted file mode 100644
index e8b5fdc..0000000
--- a/org.chromium.UpdateEngine.service
+++ /dev/null
@@ -1,3 +0,0 @@
-[D-BUS Service]
-Name=org.chromium.UpdateEngine
-Exec=/usr/sbin/update_engine