Revert "Update menu_send.cpp"

This reverts commit f9bf1e937233c4220d17d45e5710d9a8f52c326f.
This reverts commit a08f8d890d51ac59d53dd0b10474eeb1ee466a99.

Fair point raised on GitHub, that the cost of "click-by-memory" may
be too high in this case over the consistency gains, with admins
sending messages instantly instead of scheduling, like it did before.