fix: remove proactive cache deletion to prevent race condition (#26698)

Co-authored-by: Devin AI <158243242+devin-ai-integration[bot]@users.noreply.github.com>

.github/actions/cache-checkout/action.yml

@@ -21,13 +21,6 @@ runs:
         key: git-checkout-${{ github.head_ref || github.ref_name }}-${{ github.event.pull_request.head.sha || github.sha }}
         fail-on-cache-miss: true
 
-    - name: Delete previous git-checkout caches for this branch
-      if: ${{ inputs.mode == 'save' }}
-      uses: useblacksmith/cache-delete@v1
-      with:
-        key: git-checkout-${{ github.head_ref || github.ref_name }}-
-        prefix: "true"
-
     - name: Save git checkout to cache
       if: ${{ inputs.mode == 'save' }}
       uses: actions/cache/save@v4