I’m not a programmer, but I found a line in the kk-star-ratings/index.php file (you can access it in Plugins -> Editor -> select kk Star Ratings):
$leg = str_replace(‘[total]’, ‘<span property=”v:votes”>’.$votes.'</span>’, $legend);
I guess you only need to remove this variable .$votes. – leaving only ” (or removing them too).
But as said, I’m not a developer so you need to test for yourself. Backup your files too before any changes.
I think I figured out the issue with not showing ratings in google results, but it was not related to this plugin (I had Testimonials plugin installed which was messing with my schema markup).