sfcgal is marked for autoremoval from testing

[Debian testing autoremoval watch]

sfcgal 1.3.5-1 is marked for autoremoval from testing on 2018-05-31

It is affected by these RC bugs:
897487: sfcgal: FTBFS: value_semantic.hpp:167: undefined reference to `boost::program_options::validate(boost::any&, std::vector<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > > > const&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >*, int)'