Fix: Remove old spark-defaults.conf jars (#567)

aztk_cli/config/spark-defaults.conf

@@ -42,9 +42,6 @@ spark.dynamicAllocation.enabled true
 # set "scratch" space for Spark
 spark.local.dir                 /mnt/batch/tasks
 
-# Note: aztk pre-loads wasb jars, so loading is not necessary
-spark.jars                      /home/spark-current/jars/azure-storage-2.0.0.jar,/home/spark-current/jars/hadoop-azure-2.7.3.jar
-
 # Note: Default filesystem master HA
 spark.deploy.recoveryMode       FILESYSTEM
 spark.deploy.recoveryDirectory  /root/