Fix clock is always a second off

[RX14]

I don't understand why these two clocks disagree, but they do, and this way always seems to update the second exactly on time.

[Alexays]

Does this if still needed in order to show correct minutes with an interval of 60 seconds?

Waybar/src/modules/clock.cpp

Lines 17 to 19 in 5e43b4f

	if (sub_m > 0) {
	thread_.sleep_until(timeout - std::chrono::seconds(sub_m - 1));
	} else {

edit: yeah that's not needed anymore, we can remove this workaround!

[Alexays]

Thanks!