Remove unnecessary return in void method

Change-Id: I4863119ae13587f4d7fc60e55094c9d8d701c4e7

@@ -410,8 +410,6 @@ public class NetconfDeviceProvider extends AbstractProvider
             if (isReachable(deviceId)) {
                 controller.connectDevice(deviceId);
                 providerService.receivedRoleReply(deviceId, newRole, MastershipRole.MASTER);
-            } else {
-                return;
             }
         } catch (Exception e) {
             if (deviceService.getDevice(deviceId) != null) {

@@ -94,7 +94,6 @@ public class OvsdbDeviceProvider extends AbstractProvider
         if (!isReachable(deviceId)) {
             log.error("Failed to probe device {}", deviceId);
             providerService.deviceDisconnected(deviceId);
-            return;
         } else {
             log.trace("Confirmed device {} connection", deviceId);
         }

@@ -113,14 +113,11 @@ public class PcepPacketProvider extends AbstractProvider implements PacketProvid
         @Override
         public void send() {
             // We don't send anything out.
-            return;
         }
     }
 
     @Override
     public void emit(OutboundPacket packet) {
         // Nothing to emit
-        return;
-
     }
 }