[gnome-control-center] Update POTFILES.skip

[Piotr Drąg <piotrdrag src gnome org>]

commit b785a86412d1876681949ec210f264033f3fdafd
Author: Piotr Drąg <piotrdrag gmail com>
Date:   Thu Jan 25 15:07:01 2018 +0100

    Update POTFILES.skip

 po/POTFILES.skip |    4 ----
 1 files changed, 0 insertions(+), 4 deletions(-)
---
diff --git a/po/POTFILES.skip b/po/POTFILES.skip
index ed05d53..0fb3682 100644
--- a/po/POTFILES.skip
+++ b/po/POTFILES.skip
@@ -1,6 +1,2 @@
 # List of source files that should *not* be translated.
 # Please keep this file sorted alphabetically.
-egg-list-box/egg-flow-box.c
-panels/user-accounts/fingerprint-strings.h
-
-subprojects/libgd/libgd/gd-header-bar.c