Remove use of legacy access log format from node-admin
<services version="1.0" xmlns:preprocess="properties">
<container id="node-admin" version="1.0">
<!-- Please update container test when changing this file -->
- <accesslog type="vespa" fileNamePattern="logs/vespa/node-admin/access.log.%Y%m%d%H%M%S" symlinkName="access.log" />
<accesslog type="json" fileNamePattern="logs/vespa/node-admin/access-json.log.%Y%m%d%H%M%S" symlinkName="access-json.log" compressOnRotation="true" compressionType="zstd"/>
<component id="docker-api" class="com.yahoo.vespa.hosted.dockerapi.DockerEngine" bundle="docker-api"/>
