Delete fields in social profile

Yes, you can do it by filter hook ‘rtcl_social_profiles_list’
Follow below example –

add_filter( 'rtcl_social_profiles_list', function ( $options ) {
	unset( $options['pinterest'] ); // to delete

	$options['whatsApp'] = esc_html__( 'WhatsApp', 'classified-listing' ); // to add

	return $options;
} );