Update test-on-droplets-matrix.yml

.github/workflows/test-on-droplets-matrix.yml

@@ -238,11 +238,10 @@ jobs:
             -d '{"persistent_vms": [], "instances": ["${{ matrix.check_vm.item_hash }}"]}' \
             "http://${DROPLET_IPV4}:4020/control/allocations"
 
-      - name: Get system usage
+      - name: Fetch system usage endpoint
         run: |
           export DROPLET_IPV4="$(doctl compute droplet get aleph-vm-ci-${{ matrix.os_config.alias }}-${{ matrix.check_vm.alias }} --output json | ./.github/scripts/extract_droplet_ipv4.py)"
           curl -X GET -H "Content-Type: application/json" \
-            -H "X-Auth-Signature: test" \
             "http://${DROPLET_IPV4}:4020/about/usage/system"