Help with De-register CSS scripts

I was working to remove a CSS file from the location:
– mydomain[.com]/wp-content/themes/grow/css/reset.css

add_action('wp_print_styles', 'my_deregister_styles', 100);
function my_deregister_styles() {

But, When I add the above code in functions.php this removes all CSS files inside the folder
– mydomain[.com]/wp-content/themes/grow/css/main_green.css also get de-registered.

ID of the first file is “thrive-reset-css”
ID of the second file is “thrive-main-style-css”

Can someone help me to fix the bug?

Try Asset CleanUp WordPress Plugin.