How to prevent RichEditor from storing an attached image with a default caption and a link to it?

Hello! I'm using RichEditor in a post management form, and I feel that the abbiity to insert images between the text is very useful, but I found that default caption with filename and the link pointing directly to image are two undesired features. So my question is: Is there a way to avoid it?
Solution
Thank you Leandro! Just for everyone reference I tell you that I suppress unwanted data in frontend view using preg_replace in my controller just like:
$post = Post::published->whereSlug($slug)->firstOrFail();
$regex = '/<a[^>]*>(<img[^>]*>).*?<figcaption[^>]*>.*?<\/figcaption>.*?<\/a>/is';
$post->content = preg_replace($regex, '$1', $post->content);
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