Update Obtain credentials using TokenLibrary.ipynb

Author: nirav2

Notebooks/Scala/Obtain credentials using TokenLibrary.ipynb

@@ -60,10 +60,9 @@
         "// For storage Gen2, linkedServiceName can be supplied through config for SAS-key based authentication (in lieu of account-key based authentication) \n",
         "// Direct invokation of TokenLibrary is not required for obtaining creds and connection info\n",
         "\n",
-        "val sc = spark.sparkContext\n",
-        "sc.hadoopConfiguration.set(\"spark.storage.synapse.linkedServiceName\", \"<linkedServiceName>\")\n",
-        "sc.hadoopConfiguration.set(\"fs.azure.account.auth.type\", \"SAS\")\n",
-        "sc.hadoopConfiguration.set(\"fs.azure.sas.token.provider.type\", \"com.microsoft.azure.synapse.tokenlibrary.LinkedServiceBasedSASProvider\")\n",
+        "spark.conf.set(\"spark.storage.synapse.linkedServiceName\", \"<linkedServiceName>\")\n",
+        "spark.conf.set(\"fs.azure.account.auth.type\", \"SAS\")\n",
+        "spark.conf.set(\"fs.azure.sas.token.provider.type\", \"com.microsoft.azure.synapse.tokenlibrary.LinkedServiceBasedSASProvider\")\n",
         "\n",
         "val df = spark.read.parquet(\"abfss://..\")"
       ],