How to remove the default namespaces in openshift4 using promtail

Hello All,

How to remove the default namespaces in openshift4 using promtail configmap.

Here is the configmap configuration.

positions:
      filename: /tmp/positions.yaml
    target_config:
      sync_period: 10s
    scrape_configs:
    - job_name: custom-config
      pipeline_stages:
        - cri: {}
        - match:
            selector: '{app="^;*([^;]+)(;.*)?$"}'
            stages:
              - regex:
                  expression: "^(?s)(?P<time>\\S+?) (?P<stream>stdout|stderr) (?P<flags>\\S+?) (?P<content>.*)$"
              - labels:
                  stream: 
                  application_log: application_log
              - timestamp:
                  source: time
                  format: RFC3339Nano
              - output:
                  source: content
        - multiline:
             firstline: ^\x{200B}\[
             max_lines: 128
             max_wait_time: 3s
        - replace:
             expression: (\n)
             replace: ""
        # - match:
        #     selector: '{app="^;*([^;]+)(;.*)?$"}'
        #     stages:
        #       - regex:
        #           source: content
        #           expression: '(?P<timestamp>\\d{4}-\\d{2}-\\d{2} \\d{2}:\\d{2}:\\d{2}.\\d{3}) \\| (?P<level>DEBUG|INFO|WARN|ERROR) \\| (?P<thread>.+?) - (?P<thread_id>\\d+) \\| (?P<service_name>.+?) \\| (?P<context>.+?) \\|  \\|  \\| (?P<message>.+)'
        #       - labels:
        #           timestamp:
        #           level:
        #           thread:
        #           thread_id:
        #           service_name:
        #           context:
        #       - timestamp:
        #           source: timestamp
        #           format: '2006-01-02 15:04:05.000'     
        
      kubernetes_sd_configs:
        - role: pod
      relabel_configs:
        - source_labels:
            - __meta_kubernetes_pod_controller_name
          regex: ([0-9a-z-.]+?)(-[0-9a-f]{8,10})?
          action: replace
          target_label: __tmp_controller_name
        - source_labels:
            - __meta_kubernetes_pod_label_app_kubernetes_io_name
            - __meta_kubernetes_pod_label_app
            - __tmp_controller_name
            - __meta_kubernetes_pod_name
          regex: ^;*([^;]+)(;.*)?$
          action: replace
          target_label: app
        - source_labels:
            - __meta_kubernetes_pod_label_app_kubernetes_io_instance
            - __meta_kubernetes_pod_label_release
          regex: ^;*([^;]+)(;.*)?$
          action: replace
          target_label: instance
        - source_labels:
            - __meta_kubernetes_pod_label_app_kubernetes_io_component
            - __meta_kubernetes_pod_label_component
          regex: ^;*([^;]+)(;.*)?$
          action: replace
          target_label: component
        - action: replace
          source_labels:
            - __meta_kubernetes_pod_node_name
          target_label: node_name
        - action: replace
          source_labels:
            - __meta_kubernetes_namespace
          target_label: namespace
        - action: replace
          replacement: $1
          separator: /
          source_labels:
            - namespace
            - app
          target_label: job
        - action: replace
          source_labels:
            - __meta_kubernetes_pod_name
          target_label: pod
        - action: replace
          source_labels:
            - __meta_kubernetes_pod_container_name
          target_label: container
        - action: replace
          replacement: /var/log/pods/*$1/*.log
          separator: /
          source_labels:
            - __meta_kubernetes_pod_uid
            - __meta_kubernetes_pod_container_name
          target_label: __path__
        - action: replace
          regex: true/(.*)
          replacement: /var/log/pods/*$1/*.log
          separator: /
          source_labels:
            - __meta_kubernetes_pod_annotationpresent_kubernetes_io_config_hash
            - __meta_kubernetes_pod_annotation_kubernetes_io_config_hash
            - __meta_kubernetes_pod_container_name
          target_label: __path__