[core] Update some coroutine priorities (#6755)

esphome/components/template/datetime/__init__.py

@@ -17,7 +17,6 @@ from esphome.const import (
     CONF_YEAR,
 )
 
-from esphome.core import coroutine_with_priority
 from .. import template_ns
 
 CODEOWNERS = ["@rfdarter"]
@@ -100,7 +99,6 @@ CONFIG_SCHEMA = cv.All(
 )
 
 
-@coroutine_with_priority(-100.0)
 async def to_code(config):
     var = await datetime.new_datetime(config)