Fix enable/disable entity in modbus (home-assistant#151626)

Author: janiversen

homeassistant/components/modbus/entity.py

@@ -62,7 +62,6 @@
     CONF_VIRTUAL_COUNT,
     CONF_WRITE_TYPE,
     CONF_ZERO_SUPPRESS,
-    SIGNAL_START_ENTITY,
     SIGNAL_STOP_ENTITY,
     DataType,
 )
@@ -143,7 +142,6 @@ def async_disable(self) -> None:
             self._cancel_call()
             self._cancel_call = None
         self._attr_available = False
-        self.async_write_ha_state()
 
     async def async_await_connection(self, _now: Any) -> None:
         """Wait for first connect."""
@@ -162,11 +160,6 @@ async def async_base_added_to_hass(self) -> None:
         self.async_on_remove(
             async_dispatcher_connect(self.hass, SIGNAL_STOP_ENTITY, self.async_disable)
         )
-        self.async_on_remove(
-            async_dispatcher_connect(
-                self.hass, SIGNAL_START_ENTITY, self.async_local_update
-            )
-        )
 
 
 class BaseStructPlatform(BasePlatform, RestoreEntity):