How do I disable the left-(meta|windows) key binding in gnome-shell
In recent GNOME use:
gsettings set org.gnome.mutter overlay-key ''
and to restore the default keybinding use:
gsettings set org.gnome.mutter overlay-key 'Super_L'
borrowed from here.
gconftool -s /apps/mutter/general/overlay_key -t string "Super_R"
worked (after shell restart) for me. Instead of Super_R
feel free to put name of any key which doesn't exist on your keyboard.