Minor fix to disconnect only devices that belong to the provider.

Change-Id: I1910a10dfd39de781fdb515743aac5a05b141caa
diff --git a/providers/general/device/src/main/java/org/onosproject/provider/general/device/impl/GeneralDeviceProvider.java b/providers/general/device/src/main/java/org/onosproject/provider/general/device/impl/GeneralDeviceProvider.java
index 59d0ae5..c466d73 100644
--- a/providers/general/device/src/main/java/org/onosproject/provider/general/device/impl/GeneralDeviceProvider.java
+++ b/providers/general/device/src/main/java/org/onosproject/provider/general/device/impl/GeneralDeviceProvider.java
@@ -966,7 +966,7 @@
 
         @Override
         public boolean isRelevant(DeviceEvent event) {
-            return DeviceEvent.Type.DEVICE_REMOVED == event.type();
+            return DeviceEvent.Type.DEVICE_REMOVED == event.type() && myScheme(event.subject().id());
         }
     }
 }