Github user Tagar commented on the issue:
https://github.com/apache/zeppelin/pull/2601
> I believe one could remove old button "Download Data as CSV".
filed https://issues.apache.org/jira/browse/ZEPPELIN-3511 to remove old
export csv/tsv
This idea was also briefly discussed on
[PR-2971](https://github.com/apache/zeppelin/pull/2971#issuecomment-391219166) ---
