Remove two obsolete Doxygen directives

diff --git a/Doxyfile.in b/Doxyfile.in
index c76de5f..773d89a 100644 (file)
--- a/Doxyfile.in
+++ b/Doxyfile.in
@@ -922,18 +922,6 @@ GENERATE_XML           = NO
 
 XML_OUTPUT             = xml
 
-# The XML_SCHEMA tag can be used to specify an XML schema, 
-# which can be used by a validating XML parser to check the 
-# syntax of the XML files.
-
-XML_SCHEMA             = 
-
-# The XML_DTD tag can be used to specify an XML DTD, 
-# which can be used by a validating XML parser to check the 
-# syntax of the XML files.
-
-XML_DTD                = 
-
 # If the XML_PROGRAMLISTING tag is set to YES Doxygen will 
 # dump the program listings (including syntax highlighting 
 # and cross-referencing information) to the XML output. Note that