Remove example override
Remove example override

Just provides an example rather than actually overriding.

Fixes https://github.com/mysociety/alavetelitheme/issues/30

slygent/accessinfohktheme,slygent/accessinfohktheme,mysociety/alavetelitheme,mysociety/asknepal-theme,mysociety/alavetelitheme,openaustralia/righttoknow,mysociety/asknepal-theme,mysociety/bilmehakki-theme,mimesbronn/alavetelitheme,mimesbronn/alavetelitheme,openaustralia/righttoknow,openaustralia/righttoknow,mysociety/bilmehakki-theme