Remove internal notification caller tokens

backend/product/app/runtime/bootstrap_test.go

@@ -48,7 +48,6 @@ func TestProfileStartsOnEmptyDatabase(t *testing.T) {
 	t.Setenv("SXCHNGE_API_PROTOCOL", "http")
 	t.Setenv("SXCHNGE_API_ENDPOINT", "/api/v1")
 	t.Setenv("SXCHNGE_JWT_SECRET", "test-only-signing-key-at-least-32-bytes")
-	t.Setenv("SXCHNGE_NOTIFICATIONS_TOKEN", "test-notification-token-at-least-32-bytes")
 	example.API.Notifications.CAFile = "" // This startup test makes no notification RPCs.
 	root, routes := chi.NewRouter(), chi.NewRouter()
 	runtime, err := sharedruntime.CreateAPI(ctx, zap.NewNop(), &example.API, &example.API, factory, root, routes, false, profile.Runtime())