If you right click in the Find References Results window, in the context menu, you can turn Off the option "Display #include hits", which will stop VA from showing these references.
Sometimes this is helpful, but clearly not in this case.
I have a small suggestion for this window, if I disable a category it seems to remember that as default and I might not remember having turned it off later when searching for something else.
Instead of saying "found 9 references", maybe it should say "found 53 references (44 hidden)" ?