Fix markdown lint: remove extra blank line

Author: ShimonSte

docs/integrations/data-ingestion/apache-spark/spark-native-connector.md

@@ -1890,7 +1890,6 @@ spark.sql.catalog.clickhouse.option.http_keep_alive_timeout  0
 
 Setting `connection_ttl` below the appliance's idle timeout forces the connector to retire connections proactively. See [Connection resets on AWS PrivateLink or NLB](#troubleshooting-connection-resets) for full details.
 
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 ## Performance tuning {#performance-tuning}
 
 ### Read performance {#read-performance}