test_tls: enabled sendfile() part

src/tests/client_server/test_tls.c

@@ -152,7 +152,6 @@ main (int argc, char *argv[])
       .timeout_ms = 2500,
       .use_tls = true
     },
-#if BROKEN
     {
       .label = "GET with sendfile",
       .server_cb = &MHDT_server_reply_file,
@@ -162,7 +161,6 @@ main (int argc, char *argv[])
       .timeout_ms = 2500,
       .use_tls = true
     },
-#endif
     {
       .label = "client PUT with content-length",
       .server_cb = &MHDT_server_reply_check_upload,