Pierced Viel works and some signal cleanup

[FalloutFalcon]

About The Pull Request

Was looking through this downstreams commit enzosousa1@d845cd3
Its AI but I did realize some mistakes in my or others code reading through it so i replicated a few of its changes or fixed some others.

Main thing is I had a var on the species and a proc on the splat that had the same name and i got them mixed up.

Why It's Good For The Game

bad code is bad.

Changelog

🆑
code: cleans up some random signal stuff
fix: Pierced Veil should work as intended for delerium effects
/:cl:

[chazzyjazzy]

Error: /datum/splat/werewolf/shifter/proc/revert_to_breed_form sets SpacemanDMM_should_not_sleep but calls blocking proc /proc/tgui_input_list
Error: /datum/splat/werewolf/shifter/proc/revert_to_breed_form sets SpacemanDMM_should_not_sleep but calls blocking proc /proc/stoplag
Error: /datum/splat/werewolf/shifter/proc/revert_to_breed_form sets SpacemanDMM_should_not_sleep but calls blocking proc /datum/tgui_window/proc/initialize
Error: Process completed with exit code 1.

[chazzyjazzy]

just slapping a changes req cuz linters