Update README.md

Author: gnongsie

README.md

@@ -3,13 +3,6 @@
 [![Travis CI Status](https://travis-ci.org/AuthorizeNet/sdk-java.svg?branch=master)](https://travis-ci.org/AuthorizeNet/sdk-java)
 [![Code Climate](https://codeclimate.com/github/AuthorizeNet/sdk-java/badges/gpa.svg)](https://codeclimate.com/github/AuthorizeNet/sdk-java)
 [![Maven Central](https://img.shields.io/maven-central/v/net.authorize/anet-java-sdk.svg?style=flat)](http://mvnrepository.com/artifact/net.authorize/anet-java-sdk)
-
-## IMPORTANT NOTE:
-
-***Due to restrictions on Log4j2 v2.15.0, masking/hiding of sensitive data will not work for the time being.***
-
-***We will work to include it again in future versions.***
-
 
 ## Requirements
 * JDK 1.5.0 to JDK 1.8.0