Editing a Backyard Stuff Mesh. {Solved}

So I've been relentlessly trying to remove the lace from the new Backyard Stuff's bodysuit/swimsuit thing, however it does not want to be removed for me and I have no idea what I'm doing wrong. I've looked up tutorials trying to understand and have even asked a few popular blogs that I know edits meshes to try to help me out. 

Here's the mesh I want to edit. This is the original:



This is what I want it to look like:





I thought it was going to be as easy as just deleting the lace off the mesh, but of course it isn't. So I went to follow this tutorial on how to edit shadows so that I can figure out how to get rid of the lace on the other parts of the mesh. I ended up with this (I believe, I've followed so many tutorials I cant remember what the outcome of them):



Opened it back up and it still wasn't gone.

Then I went to follow this tutorial thinking that this might be the problem, since there is only three parts to the entire mesh. I ended up with this:



I thought I finally figured it out since I've technically edited the lace from all parts of the mesh. To my demise, it's still there.



I don't know what to do or what I've done wrong at this point, so I'm turning to S4S for help. Thank you very much!