Deletion of Marysburgh vortex

Comment: Seems to be a legitimate legend with at least a couple of |objective sources showing some notability. I've removed all the cruft propagated by UFO/paranormal/sensational books/websites and original research (i.e. a detailed list of ships, the sinkings of many of them dubiously attributed to the so-called vortex) and stripped it down to a viable stub
Stance: comment
Cited policy: Wikipedia:Fringe theories (WP:FRIND)