qa/distros: Remove stale kubic distros

Cause they're broken

Signed-off-by: Sebastian Wagner <sewagner@redhat.com>

qa/distros/podman/rhel_8.3_kubic_stable.yaml

@@ -1,18 +0,0 @@
-os_type: rhel
-os_version: "8.3"
-overrides:
-  selinux:
-    whitelist:
-      - scontext=system_u:system_r:logrotate_t:s0
-
-tasks:
-- pexec:
-    all:
-    - sudo cp /etc/containers/registries.conf /etc/containers/registries.conf.backup
-    - sudo dnf -y module disable container-tools
-    - sudo dnf -y install 'dnf-command(copr)'
-    - sudo dnf -y copr enable rhcontainerbot/container-selinux
-    - sudo curl -L -o /etc/yum.repos.d/devel:kubic:libcontainers:stable.repo https://download.opensuse.org/repositories/devel:/kubic:/libcontainers:/stable/CentOS_8/devel:kubic:libcontainers:stable.repo
-    - sudo dnf remove -y podman
-    - sudo dnf -y install podman
-    - sudo cp /etc/containers/registries.conf.backup /etc/containers/registries.conf

qa/distros/podman/ubuntu_18.04_kubic_stable.yaml

@@ -1,13 +0,0 @@
-os_type: ubuntu
-os_version: "18.04"
-
-# feel free to remove this test, if Kubic project is no longer maintained.
-tasks:
-- pexec:
-    all:
-    - sudo cp /etc/containers/registries.conf /etc/containers/registries.conf.backup
-    - curl -L https://download.opensuse.org/repositories/devel:/kubic:/libcontainers:/stable/xUbuntu_18.04/Release.key | sudo apt-key add -
-    - echo "deb https://download.opensuse.org/repositories/devel:/kubic:/libcontainers:/stable/xUbuntu_18.04/ /" | sudo tee /etc/apt/sources.list.d/devel:kubic:libcontainers:stable.list
-    - sudo apt update
-    - sudo apt -y install podman
-    - sudo cp /etc/containers/registries.conf.backup /etc/containers/registries.conf

qa/distros/podman/ubuntu_20.04_kubic_stable.yaml

@@ -1,13 +0,0 @@
-os_type: ubuntu
-os_version: "20.04"
-
-# feel free to remove this test, if Kubic project is no longer maintained.
-tasks:
-- pexec:
-    all:
-    - sudo cp /etc/containers/registries.conf /etc/containers/registries.conf.backup
-    - curl -L https://download.opensuse.org/repositories/devel:/kubic:/libcontainers:/stable/xUbuntu_20.04/Release.key | sudo apt-key add -
-    - echo "deb https://download.opensuse.org/repositories/devel:/kubic:/libcontainers:/stable/xUbuntu_20.04/ /" | sudo tee /etc/apt/sources.list.d/devel:kubic:libcontainers:stable.list
-    - sudo apt update
-    - sudo apt -y -o Dpkg::Options::="--force-confdef" -o Dpkg::Options::="--force-confold" install podman containernetworking-plugins
-    - sudo cp /etc/containers/registries.conf.backup /etc/containers/registries.conf

qa/distros/podman/ubuntu_20.04_kubic_testing.yaml

@@ -1,13 +0,0 @@
-os_type: ubuntu
-os_version: "20.04"
-
-# feel free to remove this test, if Kubic project is no longer maintained.
-tasks:
-- pexec:
-    all:
-    - sudo cp /etc/containers/registries.conf /etc/containers/registries.conf.backup
-    - curl -L https://download.opensuse.org/repositories/devel:/kubic:/libcontainers:/testing/xUbuntu_20.04/Release.key | sudo apt-key add -
-    - echo "deb https://download.opensuse.org/repositories/devel:/kubic:/libcontainers:/testing/xUbuntu_20.04/ /" | sudo tee /etc/apt/sources.list.d/devel:kubic:libcontainers:testing.list
-    - sudo apt update
-    - sudo apt -y -o Dpkg::Options::="--force-confdef" -o Dpkg::Options::="--force-confold" install podman containernetworking-plugins
-    - sudo cp /etc/containers/registries.conf.backup /etc/containers/registries.conf