Removes Sleep Printing Library (#78324)

## About The Pull Request

#76286, which spawned it, is dead. Don't need to hang onto it anymore
per moth's instructions

code/modules/unit_tests/_unit_tests.dm

@@ -104,7 +104,6 @@
 #include "bloody_footprints.dm"
 #include "breath.dm"
 #include "burning.dm"
-#include "byond_status.dm"
 #include "cable_powernets.dm"
 #include "card_mismatch.dm"
 #include "cardboard_cutouts.dm"