Fix unused vars warning

src/ejabberd_auth.erl

@@ -300,7 +300,7 @@ get_password_with_authmodule(User, Server) ->
 
 -spec is_user_exists(binary(), binary()) -> boolean().
 
-is_user_exists(User, <<"">>) ->
+is_user_exists(_User, <<"">>) ->
     false;
 
 is_user_exists(User, Server) ->

src/mod_pubsub_odbc.erl

@@ -2349,7 +2349,7 @@ create_node(Host, ServerHost, Node, Owner, GivenType, Access, Configuration) ->
 		{result, {NodeId, _SubsByDepth, default}} ->
 		    ejabberd_hooks:run(pubsub_create_node, ServerHost, [ServerHost, Host, Node, NodeId, NodeOptions]),
 		    {result, Reply};
-		{result, {NodeId, _SubsByDepth, Result}} ->
+		{result, {NodeId, _SubsByDepth, _Result}} ->
 		    ejabberd_hooks:run(pubsub_create_node, ServerHost, [ServerHost, Host, Node, NodeId, NodeOptions]),
 		    {result, Reply};
 		Error ->

src/mod_register_web.erl

@@ -142,7 +142,7 @@ process([<<"change_password">>],
 	  {404, [], ErrorText}
     end;
 
-process(Path, _Request) ->
+process(_Path, _Request) ->
     {404, [], "Not Found"}.
 
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