hg: jigsaw/jake/hotspot: Remove confusing comment

[alan . bateman]

Changeset: 1fc81a6c3d44
Author:    alanb
Date:      2017-05-02 08:50 +0100
URL:       http://hg.openjdk.java.net/jigsaw/jake/hotspot/rev/1fc81a6c3d44

Remove confusing comment

! src/share/vm/services/attachListener.cpp