Drop obsolete app.yaml fields

BUG=chromium:724619
TEST=deploy app

Change-Id: I251259a6d2dfe4e24e26566e0e7fc744a45186bc
Reviewed-on: https://chromium-review.googlesource.com/516549
Reviewed-by: Prathmesh Prabhu <pprabhu@chromium.org>
Tested-by: Prathmesh Prabhu <pprabhu@chromium.org>
diff --git a/app.yaml b/app.yaml
index aa97718..d5961c6 100644
--- a/app.yaml
+++ b/app.yaml
@@ -1,5 +1,3 @@
-application: dupit-hr
-version: 2
 runtime: python27
 api_version: 1
 # TODO(pprabhu) Verify if app is threadsafe.