[chores] Removed usage of deprecated pkg_resources

netjsonconfig/__init__.py

@@ -1,7 +1,3 @@
-import logging
-
-from pkg_resources import iter_entry_points
-
 from .backends.openvpn.openvpn import OpenVpn  # noqa
 from .backends.openwisp.openwisp import OpenWisp  # noqa
 from .backends.openwrt.openwrt import OpenWrt  # noqa
@@ -17,13 +13,7 @@ def get_backends():
         'openwisp': OpenWisp,
         'openvpn': OpenVpn,
         'wireguard': Wireguard,
+        'vxlan': VxlanWireguard,
         'zerotier': ZeroTier,
     }
-    logger = logging.getLogger(__name__)
-
-    for entry_point in iter_entry_points('netjsonconfig.backends'):
-        try:
-            default.update({entry_point.name.lower(): entry_point.load()})
-        except ImportError as e:  # noqa
-            logger.error("Error loading backend {}".format(entry_point.name.lower()))
     return default