Set defaults automatically

Automatically query defaults for sources/outputs/encoders and set them
before calling create

plugins/win-capture/monitor-capture.c

@@ -119,9 +119,7 @@ static void *monitor_capture_create(obs_data_t settings, obs_source_t source)
 	capture = bzalloc(sizeof(struct monitor_capture));
 	capture->opaque_effect = opaque_effect;
 
-	monitor_capture_defaults(settings);
 	update_settings(capture, settings);
-
 	return capture;
 }