[libxml2] Avoid an extra operation

[Daniel Veillard <veillard src gnome org>]

commit 59df1e4f9297b0dab63a5029082261441e4b14e0
Author: Daniel Veillard <veillard redhat com>
Date:   Mon May 21 10:14:34 2012 +0800

    Avoid an extra operation
    
    In the catalog code, tsan also complained of testing
    the variable without locking and that was done a few lines below

 catalog.c |    2 --
 1 files changed, 0 insertions(+), 2 deletions(-)
---
diff --git a/catalog.c b/catalog.c
index f33a0aa..fb586c1 100644
--- a/catalog.c
+++ b/catalog.c
@@ -1407,8 +1407,6 @@ xmlFetchXMLCatalogFile(xmlCatalogEntryPtr catal) {
 	return(-1);
     if (catal->URL == NULL)
 	return(-1);
-    if (catal->children != NULL)
-	return(-1);
 
     /*
      * lock the whole catalog for modification