How to find which plugins load Google Font and block it

I'm currently using the Zeen theme and some other plugins. I've checked all the plugin settings and disabled all the voices on Google Font.

Now, my theme loads a font via CSS, but by checking my GTMetrix site, load more than 10 .woff fonts from fonts.gstatic.com.

For now, I'm delaying font loading via this JS script


Is there any way to know which plug-in loads the fonts or PHP function to insert into the function.php file to block font loading from fonts.gstatic.com?