Revert "test trigger"

This reverts commit 692abde.

Author: ezhang6811

.github/workflows/nightly-build.yml

@@ -4,9 +4,6 @@ on:
   schedule:
     - cron: "21 3 * * *"
   workflow_dispatch:
-  push:
-    branches: 
-      - zhaez/nightly-build
 
 env:
   AWS_DEFAULT_REGION: us-east-1