revert to stereo panner

I mistakenly added a plugin with 4 outputs to my master bus, so it changed the panner to (I assume) the VBAP with 4 speakers. After I deleted this plugin, the master bus still shows the 4 speakers.

How can I revert it back to a stereo panner?

Remove 2 of the output ports. Click on the “out” button at the bottom of the relevant mixer strip, then right click on the names of the ports to remove.

Thank you for your quick and helpful response1 That did it! (And I would never had guessed it!)