Avoid another meta box in my custom post type

WordPress has remove_meta_box() function. You can use it to remove meta box

like 

function remove_post_meta_box() {
    remove_meta_box( 'meta_box_id' , 'post' , 'normal' ); 
}
add_action( 'admin_menu' , 'remove_post_meta_box' );

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