One consideration with this is the overall integrity of the unit.
While you are likely to be able to remove it easily enough, with the exception of any wiring that may run through, every partition, wall etc is part of the strength deigned into the unit. They are all there to reduce flexing while going down the road. This is important, and I wouldn't remove it.
As sdcampowner suggested above, the walls are on top of the flooring and the ceiling sits on the wall. This again lends strength to the unit.
As Scott said, do check first to see what is inside the wall. Be sure a grey or black tank vent pipe isn't in there too.
Removing a partition needs careful consideration. I personally wouldn't do it.
2007 GMC 3500 dually ext. cab 4X4 LBZ Dmax/Allison - 2007 Pacific Coachworks Tango 306RLSS
RV Rebuild Website - Site launched Aug 22, 2021 - www.rv-rebuild.com