Remove "Read More" from blog with Theme SUEVA

Hello everyone!
I’ve read something about the code for remove the “Read More” button, but still doesn’t resolve my problem.
I would like to show the entire post, without the “Read More” link.
I saw I’m able to remove the button, but still remain only 5 rows about my post.
How can I do for show the entire post?
I have the SUEVA theme and I’ve found something about “read more” in my main.php:

Could you help me?
Thank you!

Paola