memory: Remove memory debugging

This is useless compared to sanitizers or valgrind and has a
considerable performance impact if enabled accidentally.

python/libxml.c

@@ -185,17 +185,6 @@ libxml_xmlPythonCleanupParser(PyObject *self ATTRIBUTE_UNUSED,
     return(Py_None);
 }
 
-PyObject *
-libxml_xmlDumpMemory(ATTRIBUTE_UNUSED PyObject * self,
-                     ATTRIBUTE_UNUSED PyObject * args)
-{
-
-    if (libxmlMemoryDebug != 0)
-        xmlMemoryDump();
-    Py_INCREF(Py_None);
-    return (Py_None);
-}
-
 /************************************************************************
  *									*
  *		Handling Python FILE I/O at the C level			*

python/libxml.py

@@ -779,6 +779,12 @@ def popInputCallbacks():
     if len(__input_callbacks) == 0:
         libxml2mod.xmlUnregisterInputCallback()
 
+#
+# Deprecated
+#
+def dumpMemory():
+    """DEPRECATED: This feature was removed."""
+
 # WARNING WARNING WARNING WARNING WARNING WARNING WARNING WARNING WARNING
 #
 # Everything before this line comes from libxml.py 

python/libxml2-python-api.xml

@@ -124,10 +124,6 @@
       <return type='int' info="returns the number of bytes allocated and not freed"/>
       <arg name='activate' type='int' info='1 switch on memory debugging 0 switch it off'/>
     </function>
-    <function name='xmlDumpMemory' file='python'>
-      <info>dump the memory allocated in the file .memdump</info>
-      <return type='void'/>
-    </function>
     <!-- xmlNsPtr accessors -->
     <function name='xmlNodeGetNs' file='python_accessor'>
       <info>Get the namespace of a node</info>