remove try-catch that was used for debugging

src/rabbit_mqtt_retained_msg_store_ets.erl

@@ -49,23 +49,19 @@ insert(Topic, Msg, #store_state{table = T}) ->
   ok.
 
 lookup(Topic, #store_state{table = T}) ->
-  try
-    case re:run(Topic, "[+#]") of
-      nomatch -> ets:lookup(T, Topic);
-      _ ->
-        RegexTopic1 = re:replace(Topic, "[.()\\[\\]\\\\{}]", "\\\\\\0"),
-        RegexTopic2 = re:replace(RegexTopic1, "(^|/)[+]($|/)", "\\1[^/]+\\2"),
-        RegexTopic3 = re:replace(RegexTopic2, "(^|/)[#]($|/)", "\\1.+\\2"),
-        {ok,RegexTopic} = re:compile(["^", RegexTopic3, "$"]),
-        ets:foldl(fun (#retained_message{topic = ThisTopic} = Elem, Acc) ->
-          case re:run(ThisTopic, RegexTopic) of
-            nomatch -> Acc;
-            _       -> [Elem | Acc]
-          end
-        end, [], T)
-    end
-  catch
-    Class:Reason -> lager:error("~nError in lookup for Topic ~p:~s", [Topic, lager:pr_stacktrace(erlang:get_stacktrace(), {Class, Reason})])
+  case re:run(Topic, "[+#]") of
+    nomatch -> ets:lookup(T, Topic);
+    _ ->
+      RegexTopic1 = re:replace(Topic, "[.()\\[\\]\\\\{}]", "\\\\\\0"),
+      RegexTopic2 = re:replace(RegexTopic1, "(^|/)[+]($|/)", "\\1[^/]+\\2"),
+      RegexTopic3 = re:replace(RegexTopic2, "(^|/)[#]($|/)", "\\1.+\\2"),
+      {ok,RegexTopic} = re:compile(["^", RegexTopic3, "$"]),
+      ets:foldl(fun (#retained_message{topic = ThisTopic} = Elem, Acc) ->
+        case re:run(ThisTopic, RegexTopic) of
+          nomatch -> Acc;
+          _       -> [Elem | Acc]
+        end
+      end, [], T)
   end.
 
 delete(Topic, #store_state{table = T}) ->