What to do with a Drone laying queen?

[jb011a9840]

I bought a Nuc last March and over the year the colony grew and was looking really good but in August it decided to start producing queen cells.

Went through the process of moving the relevant frames into another hive and everything appeared to go well.
Both queens made it through the winter and I was looking forward to a year with 2 hives.

The original colony is looking great and thriving. However over the last month I’m become a bit suspect of the new queen,
there is loads of drone cells, drones and no sign of worker cells.

Any advice on what to do would be great, I would like to keep the 2 hives going.

Some photos are below

Cheers
Jamie