data/defaults: Drop global.ini file

This should allow dropping "dead code" in swh.core.config module regarding ini file [1]. This is the remaining sole instance of such file.

• [1] https://forge.softwareheritage.org/source/swh-core/browse/master/swh/core/config.py$96-104

Related to T1532

Test Plan

octocatalog

bin/octocatalog-diff --octocatalog-diff-args --no-truncate-details --to staging uffizi
Found host uffizi.softwareheritage.org
Cloning into '/tmp/swh-ocd.WIAYt237/environments/production/data/private'...
done.
Cloning into '/tmp/swh-ocd.WIAYt237/environments/staging/data/private'...
done.
*** Running octocatalog-diff on host uffizi.softwareheritage.org
I, [2020-09-16T14:27:38.255079 #24752]  INFO -- : Catalogs compiled for uffizi.softwareheritage.org
I, [2020-09-16T14:27:39.467942 #24752]  INFO -- : Diffs computed for uffizi.softwareheritage.org
diff origin/production/uffizi.softwareheritage.org current/uffizi.softwareheritage.org
*******************************************
  File[/etc/softwareheritage/global.ini] =>
   parameters =>
     ensure =>
      - file
      + absent
*******************************************
*** End octocatalog-diff on uffizi.softwareheritage.org

---

Migrated from D3963 (view on Phabricator)

data/defaults.yaml

@@ -1099,10 +1099,6 @@ swh::base_directory: /srv/softwareheritage
 swh::conf_directory: /etc/softwareheritage
 swh::log_directory: /var/log/softwareheritage
 swh::global_conf::file: "%{hiera('swh::conf_directory')}/global.ini"
-swh::global_conf::contents: |
-  # Managed by puppet (class profile::swh) - modifications will be overwritten
-  [main]
-  log_db =
 
 swh::apt_config::swh_repository::hostname: debian.softwareheritage.org
 swh::apt_config::swh_repository: "https://%{hiera('swh::apt_config::swh_repository::hostname')}/"