removing workflow to automatically close issues (#682)

.github/workflows/close-stale-issues.yml

@@ -1,18 +0,0 @@
-name: "Close stale issues"
-on:
-  schedule:
-    - cron: "12 3 * * *" # arbitrary time not to DDOS GitHub
-
-jobs:
-  stale:
-    runs-on: ubuntu-latest
-    steps:
-    - uses: actions/stale@v3
-      with:
-        repo-token: ${{ secrets.GITHUB_TOKEN }}
-        stale-issue-message: 'This issue was marked stale due to lack of activity. It will be closed in 30 days.'
-        close-issue-message: 'Closed as inactive. Feel free to reopen if this issue needs resolving.'
-        exempt-issue-labels: 'feature-request,triaged'
-        stale-issue-label: 'backlog'
-        days-before-stale: 30
-        days-before-close: 60