Remove duplicate check from reusable workflow

.github/workflows/build-deploy-doc.yml

@@ -31,20 +31,6 @@ on:
         default: true
 
 jobs:
-  # Checks for duplicate actions. Skips push actions if there is a matching or
-  # duplicate pull-request action.
-  checks-for-duplicates:
-    runs-on: ubuntu-latest
-    # Map a step output to a job output
-    outputs:
-      should_skip: ${{ steps.skip_check.outputs.should_skip }}
-    steps:
-      - id: skip_check
-        uses: fkirc/skip-duplicate-actions@master
-        with:
-          concurrent_skipping: 'same_content'
-          skip_after_successful_duplicate: 'true'
-          do_not_skip: '["pull_request", "workflow_dispatch", "schedule"]'
 
   build-doc:
     needs: checks-for-duplicates