Changes for 1.12 (#482)

* Update setup scripts

* Add delete action, remove Hass config command

* Update esphome.js

* Lint

esphome/components/sensor/cse7766.py

@@ -57,11 +57,3 @@ def to_code(config):
 
 
 BUILD_FLAGS = '-DUSE_CSE7766'
-
-
-def to_hass_config(data, config):
-    ret = []
-    for key in (CONF_VOLTAGE, CONF_CURRENT, CONF_POWER):
-        if key in config:
-            ret.append(sensor.core_to_hass_config(data, config[key]))
-    return ret