// Remove WordPress Auto P 
remove_filter( 'the_content', 'wpautop' ); 
// Auto P is also called in these filters, I'm just adding these lines for your information. 
// If you want to disable them, uncomment 
// remove_filter( 'the_content', 'wpautop' ); 
// remove_filter( 'the_excerpt', 'wpautop' ); 
// remove_filter( 'comment_text', 'wpautop' ); // <-- Be careful with this one

Wordpress autop

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