[Bug other/83786] Add VEC_ORDERED_REMOVE_IF

[vries at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83786

--- Comment #2 from Tom de Vries <vries at gcc dot gnu.org> ---
Latest version: https://gcc.gnu.org/ml/gcc-patches/2018-01/msg00899.html