Yes, this is simply:
[reviews_rating summary=0]
The entire summary section is removed; it’s not hidden using the stylesheet. The HTML would look something like…
<div class="google-business-reviews-rating">
<ul class="listing">
<li class="rating-5">
<span class="author-avatar"><a href="#" target="_blank"><img src="photo.jpg" alt="Avatar"></a></span>
<span class="author-name"><a href="#" target="_blank">Alpha</a></span>
<span class="rating">★★★★★</span>
<span class="relative-time-description">a week ago</span>
<div class="text">Review text goes here</div>
</li>
<li class="rating-5">
<span class="author-avatar"><a href="#" target="_blank"><img src="photo.jpg" alt="Avatar"></a></span>
<span class="author-name"><a href="#" target="_blank">Beta</a></span>
<span class="rating">★★★★★</span>
<span class="relative-time-description">a week ago</span>
<div class="text">Some different review text goes here</div>
</li>
</ul>
<p class="attribution"><span class="powered-by-google"></span></p>
</div>