Update content/shared/v3-core-plugins/_index.md

Co-authored-by: Jason Stirnaman <jstirnaman@influxdata.com>

Author: MeelahMe

content/shared/v3-core-plugins/_index.md

@@ -652,6 +652,5 @@ This creates a Python virtual environment in your plugins directory with the spe
 When configuring Grafana to connect to an InfluxDB 3 Enterprise instance:
 
 - **URL**: Use a querier URL or any node that serves queries
-- **Node roles**: In distributed deployments, a single node can serve multiple roles (ingest, queries, compaction)
 
 Example URL format: `https://querier.your-influxdb.com:8086`