This reverts commit 8c0cfc8e.

Closes: #982001

See #800983

The version of solr in Debian is outdated and newer versions are not viable to
maintain. An alternative version packaged with jdeb or similar tools may be
available via the contrib repository in the future.

Closes: #982001, #581435, #800983, #840827, #842402, #842706, #931845, #956464

not active anymore. Add myself to Uploaders.

Declare compliance with Debian Policy 4.4.1.

Install solr-permissions.conf into /etc/systemd/system/jetty9.service.d/ and
override read-only permissions of Jetty9.

Closes: #933854 #933857
Thanks: Stephan Beirer for the report.

the new configuration option of solr-permissions.conf.

read-write access to /var/lib/solr.

Closes: #919638