Remove exception when user doesn't exist during edge user delete event processing

application/src/main/java/org/thingsboard/server/service/edge/rpc/processor/user/BaseUserProcessor.java

@@ -81,7 +81,8 @@ public abstract class BaseUserProcessor extends BaseEdgeProcessor {
     protected User deleteUser(TenantId tenantId, UserId userId) {
         User userById = edgeCtx.getUserService().findUserById(tenantId, userId);
         if (userById == null) {
-            throw new IllegalArgumentException(String.format("[%s] Failed to find User with id [%s]", tenantId, userId));
+            log.trace("[{}] User with id {} does not exist", tenantId, userId);
+            return null;
         }
         edgeCtx.getUserService().deleteUser(tenantId, userById);
         return userById;

application/src/main/java/org/thingsboard/server/service/edge/rpc/processor/user/UserEdgeProcessor.java

@@ -122,6 +122,9 @@ public class UserEdgeProcessor extends BaseUserProcessor implements UserProcesso
 
     private void deleteUserAndPushEntityDeletedEventToRuleEngine(TenantId tenantId, UserId userId, Edge edge) {
         User removedUser = deleteUser(tenantId, userId);
+        if (removedUser == null) {
+            return;
+        }
         CustomerId userCustomerId = removedUser.getCustomerId();
         String userAsString = JacksonUtil.toString(removedUser);
         TbMsgMetaData msgMetaData = getEdgeActionTbMsgMetaData(edge, userCustomerId);