destroy_sample - Destroys a sample structure when you are done with it.
Allegro game programming library.
#include <allegro.h>
void destroy_sample(SAMPLE *spl);
Destroys a sample structure when you are done with it. It is safe to
call this even when the sample might be playing, because it checks and
will kill it off if it is active. Use this to avoid memory leaks in
your program.
load_sample(3alleg), exsample(3alleg)