fix(site): Remove reference to the Confluent Hub in Readme.md

plc4j/integrations/apache-kafka/README.md

@@ -1,34 +1,27 @@
-//
-//  Licensed to the Apache Software Foundation (ASF) under one or more
-//  contributor license agreements.  See the NOTICE file distributed with
-//  this work for additional information regarding copyright ownership.
-//  The ASF licenses this file to You under the Apache License, Version 2.0
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-//  See the License for the specific language governing permissions and
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-//
-:imagesdir: ../../images/
-:icons: font
-
-== https://kafka.apache.org/[Apache Kafka]
-
-Apache Kafka is an open-source distributed event streaming platform used by thousands of
-companies for high-performance data pipelines, streaming analytics, data integration, and
-mission-critical applications.
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 # PLC4X Kafka Connectors
 
 The PLC4X connectors have the ability to pass data between Kafka and devices using industrial protocols.
 They can be built from source from the future 0.8 https://plc4x.apache.org/users/download.html[release] of
 PLC4X or from the latest snapshot from https://github.com/apache/plc4x[github].
-//They can also be downloaded from the confluent https://www.confluent.io/hub/[hub].
 
 ## Introduction