minor refactor to suicide code (#70960)
minor refactor to suicide code (#70960)

## About The Pull Request
Removes a redundant if statement and moves the code up an indentation
## Why It's Good For The Game
Makes the code look better
## Changelog
:cl:
refactor: suicide code doesnt check damagetype multiple times
/:cl:

Co-authored-by: etherware-novice <615923d86676636fc71d02a42c09350eb61e9948@notarealaddr.com>
tgstation/tgstation,Bawhoppen/-tg-station,Bawhoppen/-tg-station,Bawhoppen/-tg-station,tgstation/tgstation,Bawhoppen/-tg-station,tgstation/tgstation,tgstation/tgstation,tgstation/tgstation,Bawhoppen/-tg-station,Bawhoppen/-tg-station,tgstation/tgstation,Bawhoppen/-tg-station,tgstation/tgstation,Bawhoppen/-tg-station,tgstation/tgstation