portage/sync/controller.py: Remove a debug print() missed

Fixes commit: a3991f7727be0eb973aad1b120d248a0739be453
Author: Brian Dolbec <dolsen@gentoo.org> (Sat 06 Dec 2014 02:54:36 PM PST)
Subject: portage/sync/controller.py: Make a repo.postsync.d directory