Remove add to project CI Job (#32723)

.github/workflows/add_prs_to_project.yml

@@ -1,24 +0,0 @@
-name: Add new PRs to project
-
-on:
-  pull_request_target:
-    types:
-      - opened
-
-jobs:
-  add-to-project:
-    name: Add new PR to project
-    runs-on: ubuntu-latest
-    steps:
-      - name: Generate app token
-        id: token
-        # Pinned to a specific version of the action for security reasons
-        uses: tibdex/github-app-token@3beb63f4bd073e61482598c45c71c1019b59b73a # v2.1.0
-        with:
-          app_id: ${{ secrets.PROJECTS_APP_ID }}
-          private_key: ${{ secrets.PROJECTS_APP_PEM }}
-      - name: Add to Project
-        uses: actions/add-to-project@v1.0.1
-        with:
-          project-url: https://github.com/orgs/home-assistant/projects/10
-          github-token: ${{ steps.token.outputs.token }}