-1, there's currently only 1 weapon that is purchasable that is a constant 1 hit for CLONES that are at max stats (300/100) and it costs 150 million credits.
The other weapon that isn't a constant 1 hit is the Mandalorian sniper, which is a Christmas exclusive weapon and costs 100$ and does 150, every 5 shots it does a 3x damage shot which does 340 pure damage (not including armour).
I think for the exclusivity of the Mandalorian sniper being the first ever and possibly only around for this year ever, and the NT-242c which costs 150 million credits and if you were to buy all the credits for it using real money, it'd be around 1,000$.
If it really is an issue for events there could always be a rule put in place for the shooting 4 blasters and keeping last triple shot ready, or not allowing certain weapons for an event, but removing them completely isn't the way.