Contact Form 7 auto added p tags
According to the Contact Form 7 Docs, you can disable "wpautop" for the plugin by placing the following constant in wp-config.php:
define( 'WPCF7_AUTOP', false );
If editing wp-config.php is not the solution for you, there's a handy filter. Put it in your functions.php:
// Remove <p> and <br/> from Contact Form 7add_filter('wpcf7_autop_or_not', '__return_false');
I would like to say something about this, when we want reduce auto P tag form the we should go with below filter and just write blow code in function.php.
add_filter('wpcf7_autop_or_not', '__return_false');