Revert "Add avoid double instrumenting lambda non-streaming handlers. (#8073)"

This reverts commit 82cd3f5.

Author: nhulston

dd-java-agent/agent-tooling/src/main/resources/datadog/trace/agent/tooling/bytebuddy/matcher/ignored_class_name.trie

@@ -223,7 +223,6 @@
 2 javax.xml.*
 # note we do not ignore kotlinx because we instrument coroutines code
 2 kotlin.*
-1 lambdainternal.EventHandlerLoader$PojoHandlerAsStreamHandler
 2 net.sf.cglib.*
 2 org.apache.bcel.*
 2 org.apache.html.*