Minor post-merge fixes

src/nbi/service/rest_server/nbi_plugins/ietf_network/Networks.py

@@ -42,7 +42,7 @@ class Renderer(enum.Enum):
     PYANGBIND = 'PYANGBIND'
 
 DEFAULT_RENDERER = Renderer.LIBYANG
-USE_RENDERER = get_setting('IETF_NETWORK_RENDERER', DEFAULT_RENDERER.value)
+USE_RENDERER = get_setting('IETF_NETWORK_RENDERER', default=DEFAULT_RENDERER.value)
 
 
 class Networks(Resource):

src/webui/service/__main__.py

@@ -41,8 +41,6 @@ def main():
         get_env_var_name(ServiceNameEnum.DEVICE,  ENVVAR_SUFIX_SERVICE_PORT_GRPC),
         get_env_var_name(ServiceNameEnum.SERVICE, ENVVAR_SUFIX_SERVICE_HOST     ),
         get_env_var_name(ServiceNameEnum.SERVICE, ENVVAR_SUFIX_SERVICE_PORT_GRPC),
-        get_env_var_name(ServiceNameEnum.SLICE,   ENVVAR_SUFIX_SERVICE_HOST     ),
-        get_env_var_name(ServiceNameEnum.SLICE,   ENVVAR_SUFIX_SERVICE_PORT_GRPC),
     ])
 
     logger.info('Starting...')