remove cadvisor for use in CI (sourcegraph#4033)

Author: davejrt

overlays/low-resource/cadvisor/delete-ClusterRole.yaml

@@ -0,0 +1,5 @@
+$patch: delete  
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRole
+metadata:
+  name: cadvisor

overlays/low-resource/cadvisor/delete-ClusterRoleBinding.yaml

@@ -0,0 +1,5 @@
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRoleBinding
+metadata:
+  name: cadvisor
+$patch: delete    

overlays/low-resource/cadvisor/delete-Daemonset.yaml

@@ -0,0 +1,5 @@
+$patch: delete
+apiVersion: apps/v1
+kind: DaemonSet
+metadata:
+  name: cadvisor

overlays/low-resource/cadvisor/delete-PodSecurityPolicy.yaml

@@ -0,0 +1,5 @@
+apiVersion: policy/v1beta1
+kind: PodSecurityPolicy
+metadata:
+  name: cadvisor
+$patch: delete    

overlays/low-resource/cadvisor/delete-ServiceAccount.yaml

@@ -0,0 +1,5 @@
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: cadvisor
+$patch: delete    

overlays/low-resource/kustomization.yaml

@@ -366,3 +366,12 @@ patches:
   target:
     kind: Deployment
     name: redis-cache
+
+patchesStrategicMerge:
+- cadvisor/delete-Daemonset.yaml
+- cadvisor/delete-ClusterRole.yaml
+- cadvisor/delete-ClusterRoleBinding.yaml
+- cadvisor/delete-ServiceAccount.yaml
+- cadvisor/delete-PodSecurityPolicy.yaml
+
+