[bitnami/common] Do not explicitly specify namespace in affinity term.

the current context namespace defined is identical as not defined at all

> null or empty namespaces list and null namespaceSelector means "this pod's namespace"

docs: https://kubernetes.io/docs/reference/generated/kubernetes-api/v1.23/#podaffinityterm-v1-core
issue: bitnami#12668

bitnami/common/templates/_affinities.tpl

@@ -62,8 +62,6 @@ preferredDuringSchedulingIgnoredDuringExecution:
           {{- range $key, $value := $extraMatchLabels }}
           {{ $key }}: {{ $value | quote }}
           {{- end }}
-      namespaces:
-        - {{ include "common.names.namespace" .context | quote }}
       topologyKey: kubernetes.io/hostname
     weight: 1
 {{- end -}}
@@ -84,8 +82,6 @@ requiredDuringSchedulingIgnoredDuringExecution:
         {{- range $key, $value := $extraMatchLabels }}
         {{ $key }}: {{ $value | quote }}
         {{- end }}
-    namespaces:
-      - {{ include "common.names.namespace" .context | quote }}
     topologyKey: kubernetes.io/hostname
 {{- end -}}