server: remove NS_PROC_QUERY macro

src/knot/nameserver/process_query.h

@@ -31,7 +31,6 @@
 
 /* Query processing module implementation. */
 const knot_layer_api_t *process_query_layer(void);
-#define NS_PROC_QUERY process_query_layer()
 
 /* Query processing specific flags. */
 enum process_query_flag {

src/knot/server/tcp-handler.c

@@ -312,7 +312,7 @@ int tcp_master(dthread_t *thread)
 	/* Create TCP answering context. */
 	tcp.server = handler->server;
 	tcp.thread_id = handler->thread_id[dt_get_id(thread)];
-	knot_layer_init(&tcp.layer, &mm, NS_PROC_QUERY);
+	knot_layer_init(&tcp.layer, &mm, process_query_layer());
 
 	/* Prepare structures for bound sockets. */
 	conf_val_t val = conf_get(conf(), C_SRV, C_LISTEN);

src/knot/server/udp-handler.c

@@ -508,7 +508,7 @@ int udp_master(dthread_t *thread)
 	memset(&udp, 0, sizeof(udp_context_t));
 	udp.server = handler->server;
 	udp.thread_id = handler->thread_id[thr_id];
-	knot_layer_init(&udp.layer, &mm, NS_PROC_QUERY);
+	knot_layer_init(&udp.layer, &mm, process_query_layer());
 
 	/* Event source. */
 	struct pollfd *fds = NULL;

tests/process_query.c

@@ -85,7 +85,7 @@ int main(int argc, char *argv[])
 	/* Create processing context. */
 	knot_layer_t proc;
 	memset(&proc, 0, sizeof(knot_layer_t));
-	knot_layer_init(&proc, &mm, NS_PROC_QUERY);
+	knot_layer_init(&proc, &mm, process_query_layer());
 
 	/* Create fake server environment. */
 	server_t server;