chore: reenable all http2 test

Author: oowl

t/005-exit.t

@@ -11,7 +11,7 @@ repeat_each(2);
 #log_level('warn');
 #worker_connections(1024);
 
-plan tests => repeat_each() * (blocks() * 3 + 4);
+plan tests => repeat_each() * (blocks() * 3 + 2);
 
 $ENV{TEST_NGINX_MEMCACHED_PORT} ||= 11211;
 $ENV{TEST_NGINX_MYSQL_PORT} ||= 3306;