Documentations links for >=23.1 are broken on the Apache HDFS front page

[Ravi Prakash]

Hi folks,

http://hadoop.apache.org/hdfs/

Documentation links for 23.1 and 2.0.0 are broken. Can we please just
remove them / point them to the right pages? Would this be an INFRA jira or
HDFS jira?

Thanks
Ravi