sig-cl: remove CAPI nested provider teams

Author: neolit123

config/kubernetes-sigs/sig-cluster-lifecycle/teams.yaml

@@ -258,27 +258,6 @@ teams:
     privacy: closed
     repos:
       cluster-api-provider-kubevirt: write
-  cluster-api-provider-nested-admins:
-    description: admin access to cluster-api-provider-nested
-    members:
-    - christopherhein
-    - fabriziopandini
-    - Fei-Guo
-    - justinsb
-    - neolit123
-    - timothysc
-    - vincepri
-    privacy: closed
-    repos:
-      cluster-api-provider-nested: admin
-  cluster-api-provider-nested-maintainers:
-    description: write access to cluster-api-provider-nested
-    members:
-    - christopherhein
-    - Fei-Guo
-    privacy: closed
-    repos:
-      cluster-api-provider-nested: write
   cluster-api-provider-openstack-admins:
     description: admin access to cluster-api-provider-openstack
     members:

config/restrictions.yaml

@@ -207,7 +207,6 @@ restrictions:
     - "^cluster-api-provider-gcp"
     - "^cluster-api-provider-kubemark"
     - "^cluster-api-provider-kubevirt"
-    - "^cluster-api-provider-nested"
     - "^cluster-api-provider-openstack"
     - "^cluster-api-provider-packet"
     - "^cluster-api-provider-vsphere"