[Texmacs-dev] Obsolete declarations in tree.hpp

[skhilji]

I found the following declarations in tree.hpp, but no definition any where.  
Unless I screwed up on the search string in my editor, someone may want to get 
rid of these?

tree simplify_paragraph (tree t);
tree simplify_document (tree t);
tree simplify_with (tree t);
tree simplify_arity (tree t);

Salman