Delete merge-check.sh; tests that launch bundles skip with their reason (issue 1295, S2; ADR 0529)

The checker runs node-tools' Go level and its npm test; what the script said
was NOT TESTED HERE is a skip naming the missing node or @novox/mesh-sdk.

node-tools/internal/runtime/announce_test.go

@@ -18,6 +18,7 @@ import (
 // read here with NATS's own types, each endpoint a subject actually served — and the announcement
 // follows a re-issued membership.
 func TestTheRuntimeAnnouncesWhatItServesInTheServicesProtocol(t *testing.T) {
+	mt.NeedBundles(t)
 	mesh := mt.New(t)
 	mesh.Issue(t, mt.MembershipOf("alpha", "anchor", false, nil))
 	mesh.Issue(t, mt.MembershipOf("beta", "anchor", false, map[string][]string{"node-shelf": {"list", "clear"}}))