Fixed blockHttp integration test bug

Author: rg911

e2e/infrastructure/BlockHttp.spec.ts

@@ -80,7 +80,7 @@ describe('BlockHttp', () => {
             const signedTransaction = transferTransaction.signWith(account, generationHash);
             helper.announce(signedTransaction).then((transaction) => {
                 chainHeight = transaction.transactionInfo!.height.toString();
-                return transaction;
+                done();
             });
         });
     });

e2e/infrastructure/IntegrationTestHelper.ts

@@ -77,8 +77,7 @@ export class IntegrationTestHelper {
                                 '../../../catapult-service-bootstrap/build/generated-addresses/addresses.yaml'),
                                     (error: any, yamlData: any) => {
                             if (error) {
-                                console.log(`catapult-service-bootstrap generated address could not be loaded.
-                                    Ignoring and using accounts from network.conf. Error: ${error}`);
+                                console.log(`catapult-service-bootstrap generated address could not be loaded. Ignoring and using accounts from network.conf.`);
                                 return resolve(this);
                             } else {
                                 const parsedYaml = this.yaml.safeLoad(yamlData);