I lied! It appears that the config is elsewhere in Jaunty/KDE4 (the KDE folk I am speaking to on IRC say that it's a distro-specific thing and that vanilla KDE4 doesn't have that dialog). Anyway, the config is actually located at:
~/.kde/share/config/lowspaceuse
I believe that the workaround stands though, I can delete that file when I want to re-enable the warnings.
Update: when I said it was configured in:
~/.kde/ share/config/ kdedrc
I lied! It appears that the config is elsewhere in Jaunty/KDE4 (the KDE folk I am speaking to on IRC say that it's a distro-specific thing and that vanilla KDE4 doesn't have that dialog). Anyway, the config is actually located at:
~/.kde/ share/config/ lowspaceuse
I believe that the workaround stands though, I can delete that file when I want to re-enable the warnings.