message: Remove DEMO_REALM from tests
  We don't use those cards and it adds a lot of work to each test run
diff: @@ -7,7 +7,7 @@ import { CardService, INSECURE_CONTEXT } from '../../services/card-service';
  import FileCache from '../../services/file-cache';
  import { TEST_REALM } from '@cardstack/core/tests/helpers';
  import { RealmConfig } from '@cardstack/core/src/interfaces';
  -import { BASE_REALM_CONFIG, DEMO_REALM_CONFIG } from '../../services/realms-config';
  +import { BASE_REALM_CONFIG } from '../../services/realms-config';
  tmp.setGracefulCleanup();
  @@ -62,7 +62,7 @@ export function configureCompiler(mochaContext: Mocha.Suite) {
  reg.register(
  'realmsConfig',
  class TestRealmsConfig {
  - realms: RealmConfig[] = [BASE_REALM_CONFIG, DEMO_REALM_CONFIG, { url: TEST_REALM, directory: testRealmDir }];
  + realms: RealmConfig[] = [BASE_REALM_CONFIG, { url: TEST_REALM, directory: testRealmDir }];
  },
  { type: 'service' }
  );
  