removed invariant_check() left in by mistake
removed invariant_check() left in by mistake

mildred/rasterbar-libtorrent,mildred/rasterbar-libtorrent,mrmichalis/libtorrent-code,mrmichalis/libtorrent-code,mrmichalis/libtorrent-code,mrmichalis/libtorrent-code,mrmichalis/libtorrent-code,mildred/rasterbar-libtorrent,mildred/rasterbar-libtorrent,mildred/rasterbar-libtorrent,mrmichalis/libtorrent-code,mildred/rasterbar-libtorrent