remove orion refs (#3494)

Signed-off-by: Sally MacFarlane <sally.macfarlane@consensys.net>

acceptance-tests/tests/src/test/resources/log4j2.xml

@@ -81,8 +81,6 @@
       <AppenderRef ref="SubProcessConsole" />
       <AppenderRef ref="PerTestSubprocessFile" />
     </Logger>
-    <Logger name="net.consensys.orion" level="OFF" additivity="false">
-    </Logger>
     <Root level="${sys:root.log.level}">
       <AppenderRef ref="Console" />
       <AppenderRef ref="PerTestFile" />

ethereum/core/src/main/java/org/hyperledger/besu/ethereum/privacy/PrivacyGroupUtil.java

@@ -29,11 +29,9 @@ import org.apache.tuweni.bytes.Bytes32;
 public class PrivacyGroupUtil {
 
   /*
-   * Tessera, Orion and Besu all have code to generate the privacyGroupId for LEGACY AKA EEA groups.
-   * Functionality relies on them all generating the same value. Tessera code is here:
+   * Tessera and Besu both have code to generate the privacyGroupId for LEGACY AKA EEA groups.
+   * Functionality relies on them both generating the same value. Tessera code is here:
    * https://github.com/ConsenSys/tessera/blob/c756e1bf2d1c7a7806cf3cb5b31361f51ad705f1/enclave/enclave-api/src/main/java/com/quorum/tessera/enclave/PrivacyGroupUtil.java
-   * Orion code is here:
-   * https://github.com/ConsenSys/orion/blob/05759341ec1a216e6837df91e421207c8294ad2a/src/main/java/net/consensys/orion/enclave/sodium/SodiumEnclave.java
    */
   public static Bytes32 calculateEeaPrivacyGroupId(
       final Bytes privateFrom, final List<Bytes> privateFor) {