View azimuth, sun zenith, collocation flags in Random Forest classification

no, you only include rasters which have an explanatory value for your classes. I don’t think the sun angle or the tile ID is related to the surfaces you want to classify. You can open all bands to see if they show a pattern which helps you or not.
But please consider that two bands are probably not enough for a Random Forest classification. Please have a look at my comment here: Classification of GRD product