cdp_avp: there's no xml dependecy for cdp_avp

modules/cdp_avp/Makefile

@@ -4,7 +4,6 @@ include ../../Makefile.defs
 NAME=cdp_avp.so
 
 DEFS+=-DSER_MOD_INTERFACE
-DEFS += -I/usr/include/libxml2 
 
 include ../../Makefile.modules