Update spark client license (#1839)

Author: gh-yzou

plugins/spark/v3.5/spark/LICENSE

@@ -204,8 +204,6 @@
 
 This product includes code from Apache Iceberg.
 
-* plugins/spark/v3.5/spark/src/main/java/org/apache/polaris/spark/PolarisSparkCatalog.java
-* plugins/spark/v3.5/spark/src/test/java/org/apache/polaris/spark/PolarisInMemoryCatalog.java
 * plugins/spark/v3.5/spark/src/main/java/org/apache/polaris/spark/PolarisRESTCatalog.java
 * plugins/spark/v3.5/spark/src/main/java/org/apache/polaris/spark/SparkCatalog.java