pua: Makefile - remove internal libs compilation and linking

- libs are compiled in the core

src/modules/pua/Makefile

@@ -24,6 +24,4 @@ else
 	LIBS+=-L$(LOCALBASE)/lib -lxml2
 endif
 
-SERLIBPATH=../../lib
-SER_LIBS+=$(SERLIBPATH)/srdb1/srdb1
 include ../../Makefile.modules