removed a redundant include path Daniel

* libxml-2.0.pc.in: removed a redundant include path
Daniel
diff --git a/libxml-2.0.pc.in b/libxml-2.0.pc.in
index 51a04ed..c66f82b 100644
--- a/libxml-2.0.pc.in
+++ b/libxml-2.0.pc.in
@@ -9,4 +9,4 @@
 Description: libXML library version2.
 Requires:
 Libs: -L${libdir} -lxml2 @THREAD_LIBS@ @Z_LIBS@ @ICONV_LIBS@ @M_LIBS@ @LIBS@
-Cflags: -I${includedir}/libxml2 @XML_INCLUDEDIR@ @XML_CFLAGS@
+Cflags: @XML_INCLUDEDIR@ @XML_CFLAGS@