Example of using the caldera_forms_summary_magic_fields filter to prevent a specific field from showing in Caldera Forms emails using summary magic tags https://calderaforms.com/doc/caldera_forms_summary_magic_fields/

caldera_forms_summary_magic_fields.php

<?php
/**
 * Prevent a specific field from showing in Caldera Forms emails using summary magic tags
 */
add_filter( 'caldera_forms_summary_magic_fields', function( $fields, $form ) {
	//change your field ID
	if( isset( $fields[ 'fld1243567'] ) ){
		unset( $fields[ 'fld1243567' ] );

	}

	return $fields;
	
}, 10, 2 );