The drawing shows that the trusses are of the truss type and therefore free-spanning across the entire span. Only the outer walls and a beam (visible as a dotted line through the bedrooms) are load-bearing. You can remove the walls around the kitchen, at least with regard to the load-bearing structure.
Logic says that it is free of load, unless you see a rule in the extension of one of the walls. It is never load-bearing just in a small corner like that, unless it's a former veranda that's been built in.