[libxml2] Remove a couple of dead conditions

[Daniel Veillard <veillard src gnome org>]

commit b8480ae781488f4e6974e24f2becb7bca01782f7
Author: Gaurav Gupta <g gupta samsung com>
Date:   Sat Jul 26 21:14:53 2014 +0800

    Remove a couple of dead conditions
    
    For https://bugzilla.gnome.org/show_bug.cgi?id=733711

 xmlIO.c     |    7 ++-----
 xmlmemory.c |    5 +----
 2 files changed, 3 insertions(+), 9 deletions(-)
---
diff --git a/xmlIO.c b/xmlIO.c
index 5baeba3..c8258e5 100644
--- a/xmlIO.c
+++ b/xmlIO.c
@@ -887,7 +887,7 @@ xmlFileMatch (const char *filename ATTRIBUTE_UNUSED) {
  */
 static void *
 xmlFileOpen_real (const char *filename) {
-    const char *path = NULL;
+    const char *path = filename;
     FILE *fd;
 
     if (filename == NULL)
@@ -917,11 +917,8 @@ xmlFileOpen_real (const char *filename) {
 #else
        path = &filename[5];
 #endif
-    } else
-       path = filename;
+    }
 
-    if (path == NULL)
-       return(NULL);
     if (!xmlCheckFilename(path))
         return(NULL);
 
diff --git a/xmlmemory.c b/xmlmemory.c
index 37dcf3b..05084e3 100644
--- a/xmlmemory.c
+++ b/xmlmemory.c
@@ -512,10 +512,7 @@ xmlMemStrdupLoc(const char *str, const char *file, int line)
 
     if (xmlMemStopAtBlock == p->mh_number) xmlMallocBreakpoint();
 
-    if (s != NULL)
-      strcpy(s,str);
-    else
-      goto error;
+    strcpy(s,str);
 
     TEST_POINT