Has we are in the middle of a big change the modify state stuff were
appearing in xMesh despite their AOMD nature. To simplify, comments are
removed and  xinterface::aomd::modifyAllState function is use in replacement
of the ugly set of  12 calls to modifyState method. This will certainly
disappear in the future

Remove comment regarding printMesh/printEntity. A future commit will
bring them back alive.