Remove Flahers and Riot Launchers

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The only time I've ever used the riot launcher was when I was seriously outnumbered amd outgunned and needed some cover to make a break for it. Problem is, that hardly ever happens, and even if it does, making an escape doesn't really solve anything. Besides, sec's inventory is too full already for it to be worth the increasingly limited space. A sec officer SPAWNS with an already-full backpack nowadays.