Delete .github/workflows/close_stale.yml

stale doesn't work for locked issues

.github/workflows/close_stale.yml

@@ -1,19 +0,0 @@
-name: 'Close stale issues'
-on:
-  schedule:
-    - cron: '29 1 * * *'
-  workflow_dispatch:
-  
-jobs:
-  stale:
-    runs-on: ubuntu-latest
-    steps:
-    - uses: actions/stale@v9
-      with:
-        repo-token: ${{ secrets.GITHUB_TOKEN }}
-        days-before-stale: 120
-        days-before-close: 0
-        any-of-labels: 'SDK Release,Documentation,Breaking Change,SDK Deprecated'
-        skip-locked: false
-        close-issue-reason: completed
-        close-issue-label: archived