Remove actions to add new PRs and issues to a project board

The project doesn't seem to exist, so this always fails.

.github/workflows/issue-opened-workflow.yml

@@ -14,9 +14,3 @@ jobs:
     - name: add_assignees
       run: |
         curl -X POST -H "Accept: application/vnd.github+json" -H "Authorization: Bearer ${{ secrets.GITHUB_TOKEN}}" https://api.github.com/repos/${{github.repository}}/issues/${{ github.event.issue.number}}/assignees -d '{"assignees":["${{steps.oncall.outputs.CURRENT}}"]}'
-
-    - uses: actions/add-to-project@v0.4.0
-      name: Add to Project Board
-      with:
-        project-url: https://github.com/orgs/actions/projects/12                       
-        github-token: ${{ secrets.CACHE_BOARD_TOKEN }}

.github/workflows/pr-opened-workflow.yml

@@ -18,9 +18,3 @@ jobs:
     - name: Add Assignee
       run: |
         curl -X POST -H "Accept: application/vnd.github+json" -H "Authorization: Bearer ${{ secrets.GITHUB_TOKEN}}" https://api.github.com/repos/${{github.repository}}/issues/${{ github.event.pull_request.number}}/assignees -d '{"assignees":["${{steps.oncall.outputs.CURRENT}}"]}'    
-
-    - uses: actions/add-to-project@v0.4.0
-      name: Add to Project Board
-      with:
-        project-url: https://github.com/orgs/actions/projects/12                       
-        github-token: ${{ secrets.CACHE_BOARD_TOKEN }}