[gedit-list] limitd undos

[Nick Gravgaard <me nickgravgaard com>]

I was surprised to find that while using Ubuntu LTS 12.04 I was using an
instance of gedit that seemed to have a very small undo limit. I don't
understand why anyone would ever limit this to such a small amount
unless they were working on a machine from <20 years ago

Could someone please remove this limit (and the setting)? Modern
machines have enough memory. The current setting will only annoy people
in the middle of their work.