WooCommerce Memberships: Change a Renewal Link to Purchase a Different Membership

wc-memberships-renew-with-purchase.php

<?php
// Changes the renewal link for a particular membership to purchase a new one
// Old membership will be deleted upon purchase if expired

/**
 * Changes the renewal URL for the trial membership
 *
 * @param string $url the renewal URL
 * @param \WC_Memberships_User_Membership $membership the user membership
 * @return string $url the updated renewal URL
 */
function sv_change_renewal_url( $url, $membership ) {
	
	// Use the ID of the plan that we should change the "renew" link for
	if ( 311 === $membership->plan_id ) {
		// Enter the add to cart URL of the upgrade membership product that should be purchased
		$url = '/checkout/?add-to-cart=99';
	}
	return $url;
}
add_filter( 'wc_memberships_get_renew_membership_url', 'sv_change_renewal_url', 10, 2 );


/**
 * Changes the renewal button text
 *
 * @param array $actions the actions for the membership under My Memberships
 * @param \WC_Memberships_User_Membership $membership the user membership
 * @return array $actions the updated actions
 */
function sv_change_membership_renewal_text( $actions, $membership ) {

	// Use the ID of the trial membership plan to change the button text
	if ( 311 === $membership->plan_id && $membership->is_expired() ) {
		$actions['renew']['name'] = 'Renew for 1 year';
	}
	return $actions;
}
add_filter( 'wc_memberships_members_area_my-memberships_actions', 'sv_change_membership_renewal_text', 10, 2 );


/**
 * Deletes the expired trial membership when the upgraded membership is purchased
 *
 * @param \WC_Memberships_Membership_Plan $plan the membership plan
 * @param array $args user data from the new membership
 */
function sv_remove_renewed_membership( $plan, $args ) {
	
	// Check that we're purchasing the upgraded plan before doing anything
	if ( 689 === $plan->id ) {
		// Get all of this user's memberships
		$memberships = wc_memberships_get_user_memberships( $args['user_id'] );
		
		foreach ( $memberships as $membership ) {
			// Check to see if this member has the old plan and it's expired, 
			// then delete it if so
			if ( 311 === $membership->plan_id && $membership->is_expired() ) {
				 wp_delete_post( $membership->id );
			}
		}
	}
}
add_action( 'wc_memberships_grant_membership_access_from_purchase', 'sv_remove_renewed_membership', 10, 2 );

This is absolutely great solution, unfortunately I am getting error on the third function which should remove trial membership. First two are working great.
Error is: Cannot redeclare sv_remove_renewed_membership()