reprepro: stop mirroring Debian stretch

Depends-On: https://review.opendev.org/c/openstack/project-config/+/817339

Change-Id: I88c248645144c1f21d1c03d7d5b820b747f91089

playbooks/roles/reprepro/files/debian-security/config/distributions

@@ -1,16 +1,3 @@
-
-Origin: Debian Security
-Codename: stretch
-Suite: updates
-Description: OpenStack Debian Security Stretch mirror
-Architectures: amd64 arm64 source
-Components: main
-UDebComponents: main
-Contents: .gz
-Update: debian-security
-Log: /var/log/reprepro/debian-security-stretch.log
-
-
 Origin: Debian Security
 Codename: buster
 Suite: updates

playbooks/roles/reprepro/files/debian/config/distributions

@@ -1,38 +1,3 @@
-Origin: Debian
-Label: Debian
-Codename: stretch
-Description: OpenStack Debian Stretch mirror
-Architectures: amd64 arm64 source
-Components: main
-UDebComponents: main
-Contents: .gz
-Update: debian
-Log: /var/log/reprepro/debian-stretch.log
-
-Origin: Debian
-Label: Debian
-Codename: stretch-updates
-Description: OpenStack Debian Stretch Updates mirror
-Architectures: amd64 arm64 source
-Components: main
-UDebComponents: main
-Contents: .gz
-Update: debian
-Log: /var/log/reprepro/debian-stretch-updates.log
-
-Origin: Debian Backports
-Label: Debian Backports
-Codename: stretch-backports
-NotAutomatic: yes
-ButAutomaticUpgrades: yes
-Description: OpenStack Debian Stretch Backports mirror
-Architectures: amd64 arm64 source
-Components: main
-UDebComponents: main
-Contents: .gz
-Update: debian
-Log: /var/log/reprepro/debian-stretch-backports.log
-
 Origin: Debian
 Label: Debian
 Codename: buster