Add ruby-iconv to list of things to remove when upgrading Ruby


git-svn-id: svn+ssh://svn.freebsd.org/ports/head@370538 35697150-7ecd-e111-bb59-0022644237b5
textproc/rubygem-rmmseg-cpp: fix build on systems without gcc/g++

Reported by:	antoine


git-svn-id: svn+ssh://svn.freebsd.org/ports/head@370539 35697150-7ecd-e111-bb59-0022644237b5