Making DataSource/DeltaStreamer use defaults for combining

- Addresses issue where insert will combine and remove duplicates within batch
 - Setting default insert combining to false (write client default)
 - Set to true if filtering duplicates on insert/bulk_insert

hoodie-spark/src/main/scala/com/uber/hoodie/HoodieSparkSqlWriter.scala

@@ -138,10 +138,7 @@ private[hoodie] object HoodieSparkSqlWriter {
     }
 
     // Create a HoodieWriteClient & issue the write.
-    val client = DataSourceUtils.createHoodieClient(jsc,
-      schema.toString,
-      path.get,
-      tblName.get,
+    val client = DataSourceUtils.createHoodieClient(jsc, schema.toString, path.get, tblName.get,
       mapAsJavaMap(parameters)
     )
     val commitTime = client.startCommit()
@@ -257,4 +254,4 @@ private[hoodie] object HoodieSparkSqlWriter {
     hiveSyncConfig.partitionValueExtractorClass = parameters(HIVE_PARTITION_EXTRACTOR_CLASS_OPT_KEY)
     hiveSyncConfig
   }
-}
+}