I was hoping this was work, so I tried it - I had conquered a city too close to mine in the Sengoku Conquest, and wanted to get rid of it, so I starved the city down to size 1, while having it build a settler. Once the settler had enough points, the settler was ready to be completed, but since the city was too small to build that unit, I was given the "abandon city" right click option. Lebensraum for the other one! 
