Except jQuery UI most of the modules used by UploadWizard in core seem harmless.
These are:
- mediawiki.api.watch
- mediawiki.libs.jpegmeta
- jquery.tipsy
- jquery.arrowSteps
- mediawiki.api.parse
- mediawiki.api.category
The following modules are large but can probably be acceptably loaded on mobile provided they are not loaded by default. This will need some investigation.
- jquery.validate
- mediawiki.feedback