Revert "Replace netty jar in lib directory with newer version"
Revert "Replace netty jar in lib directory with newer version"

This reverts commit d7ed3d27a74cfa0f4a470f850546e57ef458244e. Git
removed the old file but did not commit the new file.

scylladb/scylla-tools-java,scylladb/scylla-tools-java,scylladb/scylla-tools-java,scylladb/scylla-tools-java