Remove linaro cloud from Nodepool

This should be done after we are happy with the cleanups that nodepool
has performed particularly against the zk database. Otherwise we may
need to do manual cleanup after this provider config is removed.

We also remove the auto generation of the linaro cloud grafana dashboard
rules but don't remove the dashboard itself. We typically keep the
dashboards around for a while as the information exposed there may
continue to be useful after the cloud is gone.

Change-Id: I40acd28146484cb81f87ee825787d578eb964de8

grafana/create-nodepool.sh

@@ -20,7 +20,6 @@ function create {
 }
 
 create Rackspace 'rax-*' nodepool-rax.yaml
-create Linaro 'linaro-*' nodepool-linaro.yaml
 create OVH 'ovh-*' nodepool-ovh.yaml
 create Vexxhost 'vexxhost-*' nodepool-vexxhost.yaml
 create OSUOSL 'osuosl-*' nodepool-osuosl.yaml

nodepool/nb04.opendev.org.yaml

@@ -12,14 +12,6 @@ zookeeper-servers:
     port: 2281
 
 providers:
-  - name: linaro-regionone
-    region-name: 'RegionOne'
-    cloud: linaro
-    rate: 0.25
-    # 6 hours
-    image-upload-timeout: 21600
-    diskimages: []
-
   - name: osuosl-regionone
     region-name: 'RegionOne'
     cloud: osuosl

nodepool/nl03.opendev.org.yaml

@@ -366,23 +366,6 @@ providers:
             diskimage: rockylinux-9
             key-name: infra-root-keys-2024-04-08
 
-  - name: linaro-regionone
-    region-name: 'RegionOne'
-    # Changing this cloud value impacts things like mirror names in jobs.
-    # It should be changed carefully.
-    cloud: linaro
-    boot-timeout: 600
-    launch-timeout: 800
-    rate: 0.001
-    diskimages: []
-    pools:
-      - name: main
-        # Network assignment is 147.28.149.96/27, one host is the
-        # mirror node.
-        # Set to zero in preparation for cloud shutdown
-        max-servers: 0
-        labels: []
-
   - name: osuosl-regionone
     region-name: 'RegionOne'
     # Changing this cloud value impacts things like mirror names in jobs.