CLEANUP: da: use the build options list to report it

This removes one #ifdef from haproxy.c.
diff --git a/src/da.c b/src/da.c
index d15e573..1dd148f 100644
--- a/src/da.c
+++ b/src/da.c
@@ -364,4 +364,5 @@
 	sample_register_fetches(&fetch_kws);
 	sample_register_convs(&conv_kws);
 	cfg_register_keywords(&dacfg_kws);
+	hap_register_build_opts("Built with DeviceAtlas support.", 0);
 }
diff --git a/src/haproxy.c b/src/haproxy.c
index 2afb3fa..63edbd6 100644
--- a/src/haproxy.c
+++ b/src/haproxy.c
@@ -458,9 +458,6 @@
 	printf("Built with network namespace support\n");
 #endif
 
-#ifdef USE_DEVICEATLAS
-    printf("Built with DeviceAtlas support\n");
-#endif
 	list_for_each_entry(item, &build_opts_list, list) {
 		puts(item->str);
 	}