backlinks removed

Author: collaboratewithakash

core-java-modules/core-java-perf/README.md

@@ -13,5 +13,3 @@ This module contains articles about performance of Java applications
 - [Capturing a Java Thread Dump](https://www.baeldung.com/java-thread-dump)
 - [JMX Ports](https://www.baeldung.com/jmx-ports)
 - [Calling JMX MBean Method From a Shell Script](https://www.baeldung.com/jmx-mbean-shell-access)
-- [External Debugging With JMXTerm](https://www.baeldung.com/java-jmxterm-external-debugging)
-- [Create and Detect Memory Leaks in Java](https://www.baeldung.com/java-create-detect-memory-leaks)