Remove automerge bot

Not working.

.github/workflows/auto-merge.yml

@@ -1,19 +0,0 @@
-name: Automerge
-
-on:
-  pull_request_target: { types: [opened, synchronize] }
-  issue_comment: { types: [created] }
-
-jobs:
-  auto-merge-bot:
-    runs-on: ubuntu-latest
-
-    steps:
-      - uses: actions/checkout@v2.4.0
-      - name: Run Codeowners merge check
-        uses: casassg/auto-merge-bot@master
-        env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-        with:
-          assign_reviewer: true
-          merge_method: "rebase"