Remove two warnings in test suites

test/static_handler_SUITE.erl

@@ -341,7 +341,7 @@ dir_dotdot_file(Config) ->
 
 dir_empty_file(Config) ->
 	doc("Get an empty .txt file."),
-	{200, Headers, <<>>} = do_get(config(prefix, Config) ++ "/empty.txt", Config),
+	{200, _, <<>>} = do_get(config(prefix, Config) ++ "/empty.txt", Config),
 	ok.
 
 dir_error_directory(Config) ->

test/stream_handler_SUITE.erl

@@ -380,6 +380,7 @@ do_terminate_on_switch_protocol(Config) ->
 	]),
 	%% Confirm init/3 is called and receive the response.
 	Pid = receive {Self, P, init, _, _, _} -> P after 1000 -> error(timeout) end,
+	{inform, 101, _} = gun:await(ConnPid, Ref),
 	%% Confirm terminate/3 is called.
 	receive {Self, Pid, terminate, _, _, _} -> ok after 1000 -> error(timeout) end,
 	%% Confirm takeover/7 is called.