You shouldn't worry about it. Honestly doesn't even seem like you have a lot of links on those pages.
In fact, I'm pretty sure you get that message on the your blog because you link to each post 6 times (title, image, read about text, read more, comment count x2). Sitemap will naturally have many links.
The "too many links" would only really affect your rankings if you have a lot of irrelevant external links or you link to every page on your site from every page. Either of these would siphon you link authority away from the pages you want to rank.
Having many links on just two pages on your site is no big deal and nothing to worry about.