[esphome.ota] Drop narrative comment from multi-port validator

esphome/components/esphome/ota/__init__.py

@@ -78,12 +78,6 @@ def ota_esphome_final_validate(config):
         else:
             new_ota_conf.append(ota_conf)
 
-    # BREAKING CHANGE: Only a single ESPHome OTA instance is supported. Historically
-    # the config layer merged multiple configs by port to accommodate users who had a
-    # local 'ota:' block and then imported a remote package that also declared one —
-    # the merge kept their build working. That merge behavior is preserved. But two
-    # ESPHome OTA instances on *different* ports is not a real-world use case and
-    # creates ambiguity for listeners, socket wake hooks, and safe_mode coordination.
     if len(merged_ota_esphome_configs_by_port) > 1:
         raise cv.Invalid(
             f"Only a single '{CONF_OTA}' '{CONF_PLATFORM}: {CONF_ESPHOME}' instance is "