net/py-avahi: Look for the service types DB in the correct location.

(cherry picked from commit 08f3bc4c0f)

net/py-avahi/Makefile

@@ -1,4 +1,4 @@
-PORTREVISION=	1
+PORTREVISION=	2
 CATEGORIES=	net gnome python
 PKGNAMEPREFIX=	${PYTHON_PKGNAMEPREFIX}
 PKGNAMESUFFIX=	# empty
@@ -32,10 +32,6 @@ NO_ARCH=	yes
 post-extract:
 	${CP} ${FILESDIR}/build-db ${WRKSRC}/service-type-database
 
-post-patch:
-	@${REINPLACE_CMD} -e 's|@pkglibdatadir@|${DATADIR}|' \
-		${WRKSRC}/avahi-python/avahi/ServiceTypeDatabase.py.in
-
 do-build:
 	@${DO_MAKE_BUILD} -C ${BUILD_WRKSRC}
 	@${DO_MAKE_BUILD} -C ${WRKSRC}/service-type-database