Terrible Advice Tuesdays: If you don’t like having a brace across your tank, just cut it out. Most of them are made of plastic which doesn’t do much for holding the tank together anyways.
The rest of the story: While the bracing may be made of flimsy looking plastic, it is there for a reason (to hold your tank together) and shouldn’t be removed. The same holds true for glass bracing. The bracing is part of the structural integrity of the tank.
As always, there are likely people who have removed the bracing on their tank and haven’t had a problem. When their luck runs out, their tank will either start leaking (bad) or crack (also bad). Leave the brace where it is!