secret: Introduce listUnlinkSecret
secret: Introduce listUnlinkSecret

Add a temporary helper to search for a specific secret by address
on the list and remove it if it's found. The following patch will
introduce a common allocation and listInsert helper. That means
error paths of the routines calling would need a way to remove the
secret off the list.

Signed-off-by: John Ferlan <87558058f6f829e5ec976c8ef960720af4ff9c7d@redhat.com>

jardasgit/libvirt,zippy2/libvirt,zippy2/libvirt,nertpinx/libvirt,crobinso/libvirt,nertpinx/libvirt,VenkatDatta/libvirt,jardasgit/libvirt,nertpinx/libvirt,andreabolognani/libvirt,andreabolognani/libvirt,jfehlig/libvirt,fabianfreyer/libvirt,datto/libvirt,olafhering/libvirt,datto/libvirt,olafhering/libvirt,fabianfreyer/libvirt,olafhering/libvirt,eskultety/libvirt,libvirt/libvirt,fabianfreyer/libvirt,fabianfreyer/libvirt,jardasgit/libvirt,taget/libvirt,jardasgit/libvirt,jfehlig/libvirt,VenkatDatta/libvirt,libvirt/libvirt,nertpinx/libvirt,eskultety/libvirt,taget/libvirt,nertpinx/libvirt,andreabolognani/libvirt,jfehlig/libvirt,datto/libvirt,crobinso/libvirt,zippy2/libvirt,zippy2/libvirt,datto/libvirt,taget/libvirt,VenkatDatta/libvirt,eskultety/libvirt,VenkatDatta/libvirt,jardasgit/libvirt,olafhering/libvirt,jfehlig/libvirt,taget/libvirt,fabianfreyer/libvirt,libvirt/libvirt,eskultety/libvirt,crobinso/libvirt,libvirt/libvirt,datto/libvirt,crobinso/libvirt,VenkatDatta/libvirt,eskultety/libvirt,andreabolognani/libvirt,taget/libvirt,andreabolognani/libvirt