Disable docker-ce yum repo by default / cleanups (#7080)

Upgrading docker / containerd without adapting the configuration might break the node,
so disable docker-ce repo by default.
We are already using dpkg hold for Debian.

All containerd.io packages provide /usr/bin/runc, so no need to check

yum_conf was never used for containerd

module_hotfixes should not be needed with the EL8 repo

Signed-off-by: Etienne Champetier <champetier.etienne@gmail.com>

roles/container-engine/containerd/vars/debian.yml

@@ -18,5 +18,3 @@ containerd_repo_info:
       deb {{ containerd_debian_repo_base_url }}
       {{ ansible_distribution_release|lower }}
       {{ containerd_debian_repo_component }}
-
-runc_binary: /usr/bin/runc

roles/container-engine/containerd/vars/fedora.yml

@@ -3,5 +3,3 @@ containerd_package_info:
   pkg_mgr: dnf
   pkgs:
     - name: "{{ containerd_versioned_pkg[containerd_version | string] }}"
-
-runc_binary: /usr/bin/runc

roles/container-engine/containerd/vars/redhat.yml

@@ -3,10 +3,7 @@ containerd_package_info:
   pkg_mgr: yum
   pkgs:
     - name: "{{ containerd_versioned_pkg[containerd_version | string] }}"
-
-containerd_pkgs:
-  - name: "{{ containerd_versioned_pkg[containerd_version | string] }}"
-    yum_conf: "{{ containerd_yum_conf }}"
+      repo: "docker-ce"
 
 containerd_repo_key_info:
   pkg_key: ''
@@ -15,5 +12,3 @@ containerd_repo_key_info:
 containerd_repo_info:
   pkg_repo: ''
   repos: []
-
-runc_binary: /bin/runc

roles/container-engine/containerd/vars/ubuntu-amd64.yml

@@ -18,5 +18,3 @@ containerd_repo_info:
       deb {{ containerd_ubuntu_repo_base_url }}
       {{ ansible_distribution_release|lower }}
       {{ containerd_ubuntu_repo_component }}
-
-runc_binary: /usr/bin/runc