From 262fb13a7199765ecbd700f00cae700d26f177a1 Mon Sep 17 00:00:00 2001
From: JianBo He <heeejianbo@163.com>
Date: Mon, 8 Nov 2021 11:11:16 +0800
Subject: [PATCH] chore(exhook): fix diaylzer warnings

---
 apps/emqx_exhook/src/emqx_exhook_handler.erl | 2 --
 1 file changed, 2 deletions(-)

diff --git a/apps/emqx_exhook/src/emqx_exhook_handler.erl b/apps/emqx_exhook/src/emqx_exhook_handler.erl
index eaf0cd0e0..bb2380e9b 100644
--- a/apps/emqx_exhook/src/emqx_exhook_handler.erl
+++ b/apps/emqx_exhook/src/emqx_exhook_handler.erl
@@ -269,8 +269,6 @@ message(#message{id = Id, qos = Qos, from = From, topic = Topic,
       headers => headers(Headers)
      }.
 
-headers(undefined) ->
-    #{};
 headers(Headers) ->
     Ls = [username, protocol, peerhost, allow_publish],
     maps:fold(