I have deleted all materials and also unasigned the texture for each object (using the X), saved the project and started a new one where I imported all objects with append, but the textures are still there in the drop-down menu. Is there a way to delete those for like eternity?

My guess is to export and re-import again without the use of append, but then I'll lose all the object names and there are too many of them for me to consider that
