I will say that it seems the way 3PO words things means nothing of minute importance gets lost by removing those lines. My concern was that it could lead to the audience wondering why he is able to translate the inscription by memory. However, he clearly implies that he could translate it were it not for the imposed limit. And later he says that the inscription “lives… in my memory”.
That said, I don’t really think it’s a necessary change, though it does trim the overt silliness of the moment. I dunno, might be worthwhile to just make the harmless trim.
As discussed earlier, at this point we’re all scrutinising every line far beyond the film’s writers ever did. It’s important not to miss the forest for the trees. Star Wars is quite silly, and even in the OT, many important moments had humour or weirdness. Everyone’s levels for this are going to be different, but for me personally, this is the right kind of silliness in the right place. It’s not a staggering emotional beat that the whole narrative rests on, so at least for me, it can afford to have some levity. This is always going to be subjective of course, but I personally think changing it just to change it might be harmless, but it also removes a tiny bit of the movie’s charm.