Delete pr-title-checker.yaml

.github/workflows/pr-title-checker.yaml

@@ -1,23 +0,0 @@
-name: Check PR title
-
-on:
-  pull_request:
-    types:
-      - opened
-      - reopened
-      - edited
-      - synchronize
-
-concurrency:
-  group: ${{ github.workflow }}-${{ github.event.pull_request.number }}
-  cancel-in-progress: true
-
-jobs:
-  title-checker:
-    name: Check PR title
-    runs-on: [ self-hosted ]
-    
-    steps:
-      - uses: aslafy-z/conventional-pr-title-action@v2
-        env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}