github: drop DCO check now that we have the DCO app enabled

Signed-off-by: Simon Deziel <[email protected]>

.github/workflows/commits.yml

@@ -6,22 +6,8 @@ permissions:
   contents: read
 
 jobs:
-  dco-check:
-    permissions:
-      pull-requests: read  # for tim-actions/get-pr-commits to get list of commits from the PR
-    name: Signed-off-by (DCO)
+  commits:
     runs-on: ubuntu-22.04
     steps:
-    - name: Get PR Commits
-      id: 'get-pr-commits'
-      uses: tim-actions/get-pr-commits@master
-      with:
-        token: ${{ secrets.GITHUB_TOKEN }}
-
-    - name: Check that all commits are signed-off
-      uses: tim-actions/dco@master
-      with:
-        commits: ${{ steps.get-pr-commits.outputs.commits }}
-
-    - name: Check if CLA signed
-      uses: canonical/has-signed-canonical-cla@v1
+      - name: Check if CLA signed
+        uses: canonical/has-signed-canonical-cla@v1