Remove private config, entity_guid

src/content/docs/agents/ruby-agent/configuration/ruby-agent-configuration.mdx

@@ -126,18 +126,6 @@ These settings are available for agent configuration. Some settings depend on yo
   Specify the [application name](/docs/apm/new-relic-apm/installation-configuration/name-your-application) used to aggregate data in the New Relic UI. To report data to [multiple apps at the same time](/docs/apm/new-relic-apm/installation-configuration/using-multiple-names-app), specify a list of names separated by a semicolon `;`. For example, `MyApp` or `MyStagingApp;Instance1`.
   </Collapser>
 
-  <Collapser id="entity_guid" title="entity_guid">
-    <table>
-      <tbody>
-        <tr><th>Type</th><td>String</td></tr>
-        <tr><th>Default</th><td>`nil`</td></tr>
-        <tr><th>Environ variable</th><td>`NEW_RELIC_ENTITY_GUID`</td></tr>
-      </tbody>
-    </table>
-
-  The [Entity GUID](/attribute-dictionary/span/entityguid) for the entity running this agent.
-  </Collapser>
-
   <Collapser id="monitor_mode" title="monitor_mode">
     <table>
       <tbody>