Remove logging exporter references

[liustanley]

This PR was merged recently which removed the logging exporter from the list of valid exporters: open-telemetry/opentelemetry-collector-contrib#30408. This results in the following errors when using the helm chart:

* error decoding 'exporters': unknown type: "logging" for id: "logging" (valid values: [logzio loki pulsar awsxray dataset googlemanagedprometheus sumologic awskinesis carbon coralogix dynatrace elasticsearch googlecloudpubsub logicmonitor prometheus awsemf skywalking splunk_hec sapm clickhouse opencensus opensearch signalfx awscloudwatchlogs otlp alibabacloud_logservice cassandra file influxdb sentry debug datadog googlecloud kafka mezmo awss3 azuremonitor instana prometheusremotewrite syslog tencentcloud_logservice zipkin alertmanager azuredataexplorer honeycombmarker loadbalancing otlphttp])
2024/02/16 19:25:03 collector server run finished with error: failed to get config: cannot unmarshal the configuration: 1 error(s) decoding:

* error decoding 'exporters': unknown type: "logging" for id: "logging" (valid values: [logzio loki pulsar awsxray dataset googlemanagedprometheus sumologic awskinesis carbon coralogix dynatrace elasticsearch googlecloudpubsub logicmonitor prometheus awsemf skywalking splunk_hec sapm clickhouse opencensus opensearch signalfx awscloudwatchlogs otlp alibabacloud_logservice cassandra file influxdb sentry debug datadog googlecloud kafka mezmo awss3 azuremonitor instana prometheusremotewrite syslog tencentcloud_logservice zipkin alertmanager azuredataexplorer honeycombmarker loadbalancing otlphttp])

We should revert the changes made in this PR in order to remove references to the logging exporter: #907

[TylerHelmuth]

@liustanley I believe you'll only run into this issue if you use the image created from make docker-otelcontribcol from the contrib repo. The images published at https://github.com/open-telemetry/opentelemetry-collector-releases still contain the logging exporter

[TylerHelmuth]

I was imagining we'd keep the logging export in the helm chart until it is officially removed.

[liustanley]

@TylerHelmuth We're using a fork of opentelemetry-collector-contrib with these helm charts, so this broke our CI workflows when we updated our fork with upstream.

[TylerHelmuth]

I think this config will remove it from the confmap:

config:
  exporters:
    logging: null

[liustanley]

Thanks! That seems to work