Remove auto privacy warn on clique and ibft (#806)

Signed-off-by: Adrian Sutton <adrian.sutton@consensys.net>

pantheon/src/main/java/tech/pegasys/pantheon/controller/CliquePantheonController.java

@@ -259,7 +259,6 @@ public class CliquePantheonController implements PantheonController<CliqueContex
 
   @Override
   public PrivacyParameters getPrivacyParameters() {
-    LOG.warn("CliquePantheonController does not currently support private transactions.");
     return PrivacyParameters.noPrivacy();
   }
 

pantheon/src/main/java/tech/pegasys/pantheon/controller/IbftLegacyPantheonController.java

@@ -242,7 +242,6 @@ public class IbftLegacyPantheonController implements PantheonController<IbftCont
 
   @Override
   public PrivacyParameters getPrivacyParameters() {
-    LOG.warn("IbftLegacyPantheonController does not currently support private transactions.");
     return PrivacyParameters.noPrivacy();
   }
 

pantheon/src/main/java/tech/pegasys/pantheon/controller/IbftPantheonController.java

@@ -331,7 +331,6 @@ public class IbftPantheonController implements PantheonController<IbftContext> {
 
   @Override
   public PrivacyParameters getPrivacyParameters() {
-    LOG.warn("IbftPantheonController does not currently support private transactions.");
     return PrivacyParameters.noPrivacy();
   }