MAGETWO-62669: [Backport] [GITHUB] 3rd party payment gateways not visible in adminhtml anymore on 2.1.3 #7891 - 2.1.4

 - fixed unit test namespace

Author: Volodymyr Kublytskyi

app/code/Magento/Paypal/Test/Unit/Model/Config/Structure/PaymentSectionModifierTest.php

@@ -4,7 +4,7 @@
  * See COPYING.txt for license details.
  */
 
-namespace Magento\Paypal\Test\Unit\Model\Config;
+namespace Magento\Paypal\Test\Unit\Model\Config\Structure;
 
 use Magento\Paypal\Model\Config\Structure\PaymentSectionModifier;