Uninstalling DataStax Community 

Steps for uninstalling Cassandra by install type.

DataStax no longer provides the DataStax Community version of Apache Cassandra™ or the DataStax Distribution of Apache Cassandra. See DataStax support for Apache Cassandra.
To download and install open-source Cassandra, see Apache Cassandra™.

For instructions on uninstalling, see the Apache Cassandra™ documentation.