chore: make static_check happy

apps/emqx_gateway_coap/src/emqx_coap_pubsub_handler.erl

@@ -110,28 +110,24 @@ type_to_qos(coap, #coap_message{type = Type}) ->
     end.
 
 get_publish_opts(Msg) ->
-    case emqx_coap_message:extract_uri_query(Msg) of
-        undefined ->
-            #{};
-        Qs ->
-            maps:fold(
-                fun
-                    (<<"retain">>, V, Acc) ->
-                        Val = V =:= <<"true">>,
-                        Acc#{retain => Val};
-                    (<<"expiry">>, V, Acc) ->
-                        Val = erlang:binary_to_integer(V),
-                        Acc#{expiry_interval => Val};
-                    (<<"qos">>, V, Acc) ->
-                        Val = erlang:binary_to_integer(V),
-                        Acc#{qos => Val};
-                    (_, _, Acc) ->
-                        Acc
-                end,
-                #{},
-                Qs
-            )
-    end.
+    Qs = emqx_coap_message:extract_uri_query(Msg),
+    maps:fold(
+        fun
+            (<<"retain">>, V, Acc) ->
+                Val = V =:= <<"true">>,
+                Acc#{retain => Val};
+            (<<"expiry">>, V, Acc) ->
+                Val = erlang:binary_to_integer(V),
+                Acc#{expiry_interval => Val};
+            (<<"qos">>, V, Acc) ->
+                Val = erlang:binary_to_integer(V),
+                Acc#{qos => Val};
+            (_, _, Acc) ->
+                Acc
+        end,
+        #{},
+        Qs
+    ).
 
 get_publish_qos(Msg, PublishOpts) ->
     case PublishOpts of