Removes vestigial req_access from vending machines + some cleanup (#86550)

## About The Pull Request

Once upon a time, vending machines were access locked I guess? It's been
so many years since that has been the case that most people don't
remember (including myself).

This just removes all the old unused req_access lists that reside on the
various vending machines.

## Why It's Good For The Game

Less chance of cargo culting something that serves no purpose anymore.

## Changelog

Nothing player facing I should hope

---------

Co-authored-by: Ghom <42542238+Ghommie@users.noreply.github.com>

code/modules/mapfluff/ruins/lavalandruin_code/syndicate_base.dm

@@ -3,7 +3,6 @@
 /obj/machinery/vending/syndichem
 	name = "\improper SyndiChem"
 	desc = "A vending machine full of grenades and grenade accessories. Sponsored by Donk Co."
-	req_access = list(ACCESS_SYNDICATE)
 	products = list(/obj/item/stack/cable_coil = 5,
 					/obj/item/assembly/igniter = 20,
 					/obj/item/assembly/prox_sensor = 5,