removed spark-sql as a dependency which wasn't required
removed spark-sql as a dependency which wasn't required

operasoftware/pyspark-cassandra,operasoftware/pyspark-cassandra,TargetHolding/pyspark-cassandra,TargetHolding/pyspark-cassandra,omriiluz/pyspark-cassandra,omriiluz/pyspark-cassandra