[PSR] Fixed Tests

- Using `php-cs-fixer` tool.

sample/billing/ReactivateBillingAgreement.php

@@ -18,12 +18,10 @@ $agreementStateDescriptor = new AgreementStateDescriptor();
 $agreementStateDescriptor->setNote("Reactivating the agreement");
 
 try {
-
     $suspendedAgreement->reActivate($agreementStateDescriptor, $apiContext);
 
     // Lets get the updated Agreement Object
     $agreement = Agreement::get($suspendedAgreement->getId(), $apiContext);
-
 } catch (Exception $ex) {
     // NOTE: PLEASE DO NOT USE RESULTPRINTER CLASS IN YOUR ORIGINAL CODE. FOR SAMPLE ONLY
     ResultPrinter::printResult("Reactivate the Agreement", "Agreement", $agreement->getId(), $suspendedAgreement, $ex);