[Vanilla Bug] "Destroy Trigger" Map Action Bugfix

[Rampastring]

Description:

Map action 12 "Destroy Trigger" causes the game to crash if it's used to destroy the last trigger in the game's internal list of triggers.

Additional Files:

Fixed in CnCNet ts-patches: https://github.com/CnCNet/ts-patches/blob/master/src/destroytrigger_crash.asm