Minor refactoring related to wso2/product-iots#1035

components/email-sender/org.wso2.carbon.email.sender.core/src/main/java/org/wso2/carbon/email/sender/core/service/EmailSenderServiceImpl.java

@@ -62,12 +62,8 @@ public class EmailSenderServiceImpl implements EmailSenderService {
     }
 
     private boolean isMailServerConfigured() {
-        if(EmailSenderDataHolder.getInstance().getConfigurationContextService().getServerConfigContext().
+        return (EmailSenderDataHolder.getInstance().getConfigurationContextService().getServerConfigContext().
-                getAxisConfiguration().getTransportOut(TRANSPORT_SENDER_NAME) != null) {
+                getAxisConfiguration().getTransportOut(TRANSPORT_SENDER_NAME) != null);
-            return true;
-        } else {
-            return false;
-        }
     }
 
     @Override