Remove unneeded URL processing
Remove unneeded URL processing

In our testing environment links.prev will always equal
the result of mergeUrl( endpoint, links.prev ); as such
this processing is superfluous and can be removed.

kadamwhite/wordpress-rest-api,WP-API/node-wpapi,kadamwhite/wordpress-rest-api,kadamwhite/wordpress-rest-api,WP-API/node-wpapi