Sentinel-2 Mosaic - Remove bands "count"


I am working on Sentinel-2 images that I want to mosaic and then apply a classification on. I used the Mosaic tool, and I got a file with the following bands :


Is there a way to remove these bands ? I do not need those for my classification, and I would like to reduce the size of the file, especially for the .TIF export.

Thank you in advance

In the first step, you can remove the valid-pixel expression from the reflectance bands. The count band is used there. Afterwards, you can simply remove them by pressing DEL. But actually it contains valuable information, namely where you have data and where not.
Instead of Mosaic you can also use the L3 Binning tool. There you have more control of what is being written.
You can also create a graph and use BandSelect or BandMaths to create a new product which contains only the bands you need.