[ONOS-4520] Move Protobuf to ONOS model conversion util protobuf bundle.

Change-Id: I0fbfd750d569cb5da6dd29af5aa77d19d6f29494
diff --git a/incubator/rpc-grpc/src/main/java/org/onosproject/incubator/rpc/grpc/GrpcRemoteServiceServer.java b/incubator/rpc-grpc/src/main/java/org/onosproject/incubator/rpc/grpc/GrpcRemoteServiceServer.java
index a36b21e..62bdfb2 100644
--- a/incubator/rpc-grpc/src/main/java/org/onosproject/incubator/rpc/grpc/GrpcRemoteServiceServer.java
+++ b/incubator/rpc-grpc/src/main/java/org/onosproject/incubator/rpc/grpc/GrpcRemoteServiceServer.java
@@ -17,7 +17,7 @@
 
 import static com.google.common.base.Preconditions.checkNotNull;
 import static java.util.stream.Collectors.toList;
-import static org.onosproject.incubator.rpc.grpc.GrpcDeviceUtils.translate;
+import static org.onosproject.incubator.protobuf.net.ProtobufUtils.translate;
 import static org.onosproject.net.DeviceId.deviceId;
 
 import java.io.IOException;
@@ -49,6 +49,7 @@
 import org.onosproject.grpc.net.device.DeviceService.UpdatePortStatistics;
 import org.onosproject.grpc.net.device.DeviceService.UpdatePorts;
 import org.onosproject.grpc.net.link.LinkProviderServiceRpcGrpc;
+import org.onosproject.incubator.protobuf.net.ProtobufUtils;
 import org.onosproject.net.DeviceId;
 import org.onosproject.net.MastershipRole;
 import org.onosproject.net.PortNumber;
@@ -269,7 +270,7 @@
                 deviceProviderService.updatePorts(deviceId(updatePorts.getDeviceId()),
                                                   updatePorts.getPortDescriptionsList()
                                                       .stream()
-                                                          .map(GrpcDeviceUtils::translate)
+                                                          .map(ProtobufUtils::translate)
                                                           .collect(toList()));
                 break;
             case PORT_STATUS_CHANGED:
@@ -288,7 +289,7 @@
                 deviceProviderService.updatePortStatistics(deviceId(updatePortStatistics.getDeviceId()),
                                                            updatePortStatistics.getPortStatisticsList()
                                                              .stream()
-                                                                .map(GrpcDeviceUtils::translate)
+                                                                .map(ProtobufUtils::translate)
                                                                 .collect(toList()));
                 break;