qa: remove distros/podman

It is superseded by supported-container-hosts.

Signed-off-by: Patrick Donnelly <pdonnell@ibm.com>

qa/distros/podman/centos_8.stream_container_tools.yaml

@@ -1,14 +0,0 @@
-os_type: centos
-os_version: "8.stream"
-overrides:
-  selinux:
-    allowlist:
-      - 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 reset container-tools
-    - sudo dnf -y  module install container-tools --allowerasing --nobest
-    - sudo cp /etc/containers/registries.conf.backup /etc/containers/registries.conf

qa/distros/podman/centos_9.stream.yaml

@@ -1,6 +0,0 @@
-os_type: centos
-os_version: "9.stream"
-overrides:
-  selinux:
-    allowlist:
-      - scontext=system_u:system_r:logrotate_t:s0