Neither.
Dropping one non-essential module in the first year has no effect, as each of the various requirements for degrees will say something like "360 credits (or 340 if carrying 1 failed module from your 1st year)"
If you drop a module in the second year as well, you will need to either pass it by compensation overall, or lose out on honours overall.
Example
1st year
50 50 35 20 40 45
=> resit 2 to get
50 50 40 28 40 45
=> Go on to second year ordinary
40 35 40 50 55 55
=> Fail it again at resit, go on to third year ordinary
50 50 45 50 60 55 (worked a bit harder this time)
You have: 320 credits at first, your 35 from year 2 can be passed by compensation as you average over the degree is 49, giving you 340 credits, which as the 20 failed were first year credits allows you to pass the degree.
With an average of 49 they may consider either a III or a II.2 depending on personal circumstances etc.
If the failed module from year 2 was failed at below 30%, they can at most only award an ordinary degree.