* Removes poseur tag graffiti (it's been dead for ~6 years Edition) (#75689)
## About The Pull Request
The _poseur tag_ graffiti option was not removed in the gang gamemode
removal back in #30056. Back then it would have chosen one of the gangs'
tags to mimic. Now, if selected, it will create an empty graffiti. This
will also apply to any mapped/generated graffiti. This sucks and this
derailed me from my other thing I was doing in the crayons.dm vicinity.
## Why It's Good For The Game
Removes a 6-year-old non-functioning graffiti option.
## Changelog
🆑
fix: exorcised a ghost of the gang gamemode from graffiti
/🆑
* Removes poseur tag graffiti (it's been dead for ~6 years Edition)
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Co-authored-by: Sealed101 <cool.bullseye@yandex.ru>