In `WP_Http_Curl::request()`, `$theResponse` is unused. There are other `curl_exec()` calls that do not return as well.

See #27882.

Built from https://develop.svn.wordpress.org/trunk@28317


git-svn-id: http://core.svn.wordpress.org/trunk@28145 1a063a9b-81f0-0310-95a4-ce76da25c4cd