chore(op-acceptance-tests): flake-shake; test promotions (#18198)

Author: opgitgovernance

op-acceptance-tests/acceptance-tests.yaml

@@ -15,11 +15,6 @@ gates:
   - id: flake-shake
     description: "Quarantine gate for new and potentially flaky tests requiring stability validation."
     tests:
-      - package: github.com/ethereum-optimism/optimism/op-acceptance-tests/tests/sync/elsync/gap_elp2p
-        name: TestL2ELP2PCanonicalChainAdvancedByFCU
-        timeout: 30m
-        owner: "changwan,anton"
-
   - id: isthmus
     description: "Isthmus network tests."
     tests: