My late MiL kept my OH's wedding album.
To be honest, when I found out - OH stumbled across it by accident one day when we were visiting - I thought it rather odd, but at least she didn't have any of the photos on display.
What I found even odder was that after her death, over twenty years later, when he sorted out her house, my BIL (OH's brother) held on to them to pass on to my OH. This is a BIL who threw away (or sold) all manner of items of sentimental value that my OH would have liked to keep, yet saw fit to keep back those old wedding photos rather than put them straight in the bin like he did all the old photos of their parents, or their own childhood!
As to your own situation, Lizbethann55, I agree with what others have said. Don't do anything for now. If your fears are realized, ask your daughter what she would like you to do about the photos that are on display - and if she says 'leave them there', repeat the question in the future if she is in a new relationship,
Even if you do take them off the wall at some stage, I see no reason to throw them away if you don't want to, though I'm guessing that you might have a wedding album anyway which probably has the same photos in it? If you do, that is a much more discrete way of saving those memories than keeping pictures on the wall