Hello!
The canonical URL is probably the most critical tag TSF outputs. With it removed, your site may face duplicate content and crawling issues.
Could you explain to me the reason you’d like it removed? I haven’t encountered any other plugin that could do it better, but I have seen many plugins messing up the canonical URL, something we should try fixing instead.
Still, if you believe that your reason is good enough to remove this feature entirely, use the following snippet; however, I cannot recommend using it:
add_filter( 'the_seo_framework_rel_canonical_output', '__return_false' );