Fix sfr_box entry reload (home-assistant#156593)

Author: epenet

homeassistant/components/sfr_box/__init__.py

@@ -81,4 +81,8 @@ async def async_setup_entry(hass: HomeAssistant, entry: SFRConfigEntry) -> bool:
 
 async def async_unload_entry(hass: HomeAssistant, entry: SFRConfigEntry) -> bool:
     """Unload a config entry."""
+    if entry.data.get(CONF_USERNAME) and entry.data.get(CONF_PASSWORD):
+        return await hass.config_entries.async_unload_platforms(
+            entry, PLATFORMS_WITH_AUTH
+        )
     return await hass.config_entries.async_unload_platforms(entry, PLATFORMS)