Use system version of pugixml, not a checkouted one

scripts/setup.sh

@@ -1,13 +1,5 @@
 #!/bin/bash
 
-# Pugixml
-if [ ! -d lib/pugixml ] ; then
-    git clone https://github.com/zeux/pugixml.git lib/pugixml
-    pushd lib/pugixml
-    git checkout latest
-    popd
-fi
-
 # uPDFParser
 if [ ! -d lib/updfparser ] ; then
     git clone git://soutade.fr/updfparser.git lib/updfparser

scripts/update_lib.sh

@@ -1,17 +1,12 @@
 #!/bin/bash
 
-if [ ! -d lib/pugixml -o ! -d lib/updfparser ] ; then
+if [ ! -d lib/updfparser ] ; then
     echo "Some libraries are missing"
     echo "You must run this script at the top of libgourou working direcotry."
     echo "./lib/setup.sh must be called first (make all)"
     exit 1
 fi
 
-# Pugixml
-pushd lib/pugixml
-git pull origin latest
-popd
-
 # uPDFParser
 pushd lib/updfparser
 git pull origin master