[gtksourceview] Remove old reference to our copy of glib regex stuff

[Paolo Borelli <pborelli src gnome org>]

commit 7822ef6ab22d1703a7166add5a5b1a46a68c238b
Author: Paolo Borelli <pborelli gnome org>
Date:   Sat Jun 8 11:44:56 2013 +0200

    Remove old reference to our copy of glib regex stuff

 po/POTFILES.skip |    1 -
 1 files changed, 0 insertions(+), 1 deletions(-)
---
diff --git a/po/POTFILES.skip b/po/POTFILES.skip
index b2b6793..8cc57b2 100644
--- a/po/POTFILES.skip
+++ b/po/POTFILES.skip
@@ -1,4 +1,3 @@
 data/styles/testdark.xml
 docs/reference/lang-tutorial.xml
-gtksourceview/regex/glib/gregex.c
 tests/test-scheme.xml