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

This removes one #ifdef from haproxy.c.

src/da.c

@@ -364,4 +364,5 @@ static void __da_init(void)
 	sample_register_fetches(&fetch_kws);
 	sample_register_convs(&conv_kws);
 	cfg_register_keywords(&dacfg_kws);
+	hap_register_build_opts("Built with DeviceAtlas support.", 0);
 }

src/haproxy.c

@@ -458,9 +458,6 @@ static void display_build_opts()
 	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);
 	}