tests: remove allowlist entry for deleting no longer present service

The warning log "Deleting no longer present service" was emitted because
cilium-agent in versions <= 1.13 waited on the wrong Kubernetes API group
during startup.

Specifically, it waited for K8sAPIGroupEndpointSliceV1Beta1Discovery
instead of K8sAPIGroupEndpointSliceV1Discovery, causing SyncWithK8sFinished
to run before all services were fully synced. This resulted in services
restored from the datapath being temporarily deleted and later re-added,
even though they were still present and active.

This behavior was unintentionally fixed in v1.14 by refactoring the
Kubernetes watcher initialization and resource synchronization logic.
As a result, this warning is no longer expected. Remove the corresponding
allowlist entry. More details of analysis in cilium#29679.

Fixes: cilium#29679

Signed-off-by: Zijian Zhang <zijianzhang@bytedance.com>

Author: Zijian Zhang

test/helpers/cons.go

@@ -195,7 +195,6 @@ const (
 	failedToReleaseLock        = "Failed to release lock:"
 	errorCreatingInitialLeader = "error initially creating leader election record:"
 	cantEnableJIT              = "bpf_jit_enable: no such file or directory"                             // Because we run tests in Kind.
-	delMissingService          = "Deleting no longer present service"                                    // cf. https://github.com/cilium/cilium/issues/29679
 	podCIDRUnavailable         = " PodCIDR not available"                                                // cf. https://github.com/cilium/cilium/issues/29680
 	unableGetNode              = "Unable to get node resource"                                           // cf. https://github.com/cilium/cilium/issues/29710
 	objectHasBeenModified      = "the object has been modified; please apply your changes"               // cf. https://github.com/cilium/cilium/issues/29712
@@ -255,8 +254,8 @@ var badLogMessages = map[string][]string{
 	logutils.ErrorLogs: {opCantBeFulfilled, initLeaderElection, globalDataSupport,
 		failedToListCRDs, retrieveResLock, failedToRelLockEmptyName, failedToUpdateLock,
 		failedToReleaseLock, errorCreatingInitialLeader},
-	logutils.WarningLogs: {cantEnableJIT, delMissingService, podCIDRUnavailable,
-		unableGetNode, objectHasBeenModified, etcdTimeout, endpointRestoreFailed,
+	logutils.WarningLogs: {cantEnableJIT, podCIDRUnavailable, unableGetNode,
+		objectHasBeenModified, etcdTimeout, endpointRestoreFailed,
 		cantFindIdentityInCache, keyAllocFailedFoundMaster, cantRecreateMasterKey,
 		cantUpdateCRDIdentity, cantDeleteFromPolicyMap, failedToListCRDs, mutationDetector},
 }