chore(exhook): fix dialyzer warnings

apps/emqx_exhook/src/emqx_exhook.erl

@@ -106,7 +106,6 @@ call_fold(Hookpoint, Req, AccFun, [ServiceName|More]) ->
 %%----------------------------------------------------------
 %% Storage
 
--compile({inline, [save/2]}).
 save(Name, ServiceState) ->
     Saved = persistent_term:get(?APP, []),
     persistent_term:put(?APP, lists:reverse([Name | Saved])),

apps/emqx_exhook/src/emqx_exhook_server.erl

@@ -40,7 +40,7 @@
           %% Server name (equal to grpc client channel name)
           name :: server_name(),
           %% The server started options
-          options :: list(),
+          options :: options(),
           %% gRPC channel pid
           channel :: pid(),
           %% Registered hook names and options
@@ -142,11 +142,7 @@ channel_opts(Opts = #{url := URL}) ->
             error(bad_server_url)
     end.
 
-format_http_uri(Scheme, Host0, Port) ->
-    Host = case is_tuple(Host0) of
-               true -> inet:ntoa(Host0);
-               _ -> Host0
-           end,
+format_http_uri(Scheme, Host, Port) ->
     lists:flatten(io_lib:format("~s://~s:~w", [Scheme, Host, Port])).
 
 filter(Ls) ->