Fix TODO item

pom.xml

@@ -453,8 +453,9 @@
               <target>${target.java.version}</target>
               <compilerArgs>
                 <!-- Enable almost all warnings.-->
-                <!-- FIXME: Why does the hive udf fail with "An unknown compilation problem occurred" when using -Xlint:classfile,processing ? -->
-                <!-- Ignore the 'serial' warnings about not having a serialVersionUID -->
+                <!-- Ignore 'classfile' to allow leaving Kryo out. -->
+                <!-- Ignore 'processing' to avoid "No processor claimed any of these annotations" in several places. -->
+                <!-- Ignore 'serial' warnings about not having a serialVersionUID -->
                 <arg>-Xlint:all,-classfile,-processing,-serial</arg>
                 <arg>-Werror</arg>
               </compilerArgs>
@@ -480,8 +481,9 @@
               <release>${target.java.release}</release>
               <compilerArgs>
                 <!-- Enable almost all warnings.-->
-                <!-- FIXME: Why does the hive udf fail with "An unknown compilation problem occurred" when using -Xlint:classfile,processing ? -->
-                <!-- Ignore the 'serial' warnings about not having a serialVersionUID -->
+                <!-- Ignore 'classfile' to allow leaving Kryo out. -->
+                <!-- Ignore 'processing' to avoid "No processor claimed any of these annotations" in several places. -->
+                <!-- Ignore 'serial' warnings about not having a serialVersionUID -->
                 <arg>-Xlint:all,-classfile,-processing,-serial</arg>
                 <arg>-Werror</arg>
                 <arg>-implicit:class</arg>

udfs/beam/pom.xml

@@ -69,13 +69,6 @@
       <scope>test</scope>
     </dependency>
 
-    <dependency>
-      <groupId>com.esotericsoftware</groupId>
-      <artifactId>kryo</artifactId>
-      <version>${kryo5.version}</version>
-      <scope>provided</scope>
-    </dependency>
-
     <!--=========================-->
     <!--Needed for PAssert-->
     <dependency>