Remove country filter from HACS config.

This applied when Goldair and Kogan were the only supported devices.
Now there are European devices supported too, so the filter no longer makes
sense.

hacs.json

@@ -1,8 +1,7 @@
 {
   "name": "Tuya local devices",
   "render_readme": true,
-    "domains": ["climate", "light", "lock", "switch"],
-  "country": ["NZ", "AU"],
-  "homeassistant": "0.110.0",
+  "domains": ["climate", "light", "lock", "switch"],
+  "homeassistant": "2021.3.0",
   "iot_class": "Local Polling"
 }