Fix looping sounds

[VReaperV]

Fixes the magical quantum looping sound emitters that change their state when you stop observing them.

The effect can be very easily heard on the map spacetracks where the elevator music restarts whenever the speaker goes out of view without this fix.

Also removed a layer of useless functions in the surrounding code.

[slipher]

For me this branch seems to break all non-looping sounds. For example firing a rifle makes no sound.

Anyway would this means we are perpetually mixing a bunch of dead sounds with 0 volume? Seems like it could cause performance problems

[VReaperV]

For me this branch seems to break all non-looping sounds. For example firing a rifle makes no sound.

Fixed.

[VReaperV]

Anyway would this means we are perpetually mixing a bunch of dead sounds with 0 volume? Seems like it could cause performance problems

I've found a fix for this as well. I'll open a new pr later to use instead of this one, since it requires compat-breaking changes.

[VReaperV]

Anyway would this means we are perpetually mixing a bunch of dead sounds with 0 volume? Seems like it could cause performance problems

I've put the proper fix into #1756.