[libxml2] Don't use default SAX handler to report unrelated errors

[Nick Wellnhofer <nwellnhof src gnome org>]

commit 920753c4aaa66f6500ecd5b4b3e7bc3c92bf503d
Author: Nick Wellnhofer <wellnhofer aevum de>
Date:   Mon Aug 22 13:46:50 2022 +0200

    Don't use default SAX handler to report unrelated errors

 HTMLparser.c | 5 -----
 catalog.c    | 6 +-----
 2 files changed, 1 insertion(+), 10 deletions(-)
---
diff --git a/HTMLparser.c b/HTMLparser.c
index ba886908..0100dbee 100644
--- a/HTMLparser.c
+++ b/HTMLparser.c
@@ -6481,11 +6481,6 @@ htmlCreateFileParserCtxt(const char *filename, const char *encoding)
     }
     canonicFilename = (char *) xmlCanonicPath((const xmlChar *) filename);
     if (canonicFilename == NULL) {
-#ifdef LIBXML_SAX1_ENABLED
-       if (xmlDefaultSAXHandler.error != NULL) {
-           xmlDefaultSAXHandler.error(NULL, "out of memory\n");
-       }
-#endif
        xmlFreeParserCtxt(ctxt);
        return(NULL);
     }
diff --git a/catalog.c b/catalog.c
index b7837e3d..e03c3e40 100644
--- a/catalog.c
+++ b/catalog.c
@@ -891,11 +891,7 @@ xmlParseCatalogFile(const char *filename) {
 
     ctxt = xmlNewParserCtxt();
     if (ctxt == NULL) {
-#ifdef LIBXML_SAX1_ENABLED
-       if (xmlDefaultSAXHandler.error != NULL) {
-           xmlDefaultSAXHandler.error(NULL, "out of memory\n");
-       }
-#endif
+        xmlCatalogErrMemory("allocating parser context");
        return(NULL);
     }