Tentatively fixed #69655 , make compiling with -Wredundant-decls clean.

* HTMLtree.c Makefile.am build_glob.py configure.in debugXML.c
  globals.c parser.c threads.c tree.c valid.c xmlmemory.c
  xpath.c xpointer.c include/libxml/globals.h include/libxml/parser.h
  include/libxml/parserInternals.h include/libxml/tree.h
  include/libxml/xmlmemory.h include/libxml/xpathInternals.h:
  Tentatively fixed #69655 , make compiling with -Wredundant-decls
  clean.
* python/libxml.c: fixed a warning.
Daniel
diff --git a/configure.in b/configure.in
index 9326773..08d2a1e 100644
--- a/configure.in
+++ b/configure.in
@@ -273,7 +273,7 @@
     if test "${with_xptr}" = "" ; then
         with_xptr="yes"
     fi
-    CFLAGS="-g -O -pedantic -W -Wunused -Wimplicit -Wreturn-type -Wswitch -Wcomment -Wtrigraphs -Wformat -Wchar-subscripts -Wuninitialized -Wparentheses -Wshadow -Wpointer-arith -Wcast-align -Wwrite-strings -Waggregate-return -Wstrict-prototypes -Wmissing-prototypes -Wnested-externs -Winline "
+    CFLAGS="-g -O -pedantic -W -Wunused -Wimplicit -Wreturn-type -Wswitch -Wcomment -Wtrigraphs -Wformat -Wchar-subscripts -Wuninitialized -Wparentheses -Wshadow -Wpointer-arith -Wcast-align -Wwrite-strings -Waggregate-return -Wstrict-prototypes -Wmissing-prototypes -Wnested-externs -Winline -Wredundant-decls "
 dnl -Wcast-qual -ansi
 fi