Checking input amount when burning

[TAnNbR]

The input amount must less than the amount that a LP have in a position, it's apparently here's no logic error in the code because LiquidityMath.addLiquidity(a,b) will make sure a>b when a-b due to solidity's OverFlow checking, but if adding a specific checking such as if (inputAmount < position.liquidity) and a clear revert like notEnoughLiquidity is more clear and meaningful instead of reverting by solidity's OverFlow checking.This is my personal opinion, which may not necessarily be correct