Remove lines from Home Assistant notifications log file

Hi all! In my configuration file I am using the file platform to store notifications

notify:

  • name: Test Data
    platform: file
    timestamp: false
    filename: /var/www/html/sensors

And i am recieved the output file that consists lines like that:
Home Assistant notifications (Log started: 2020-04-10T14:58:01.042750+00:00)
--------------------------------------------------------------------------------
:14.5;:4630;

What configuration variables i must write to config file to remove lines:
Home Assistant notifications (Log started: 2020-04-10T14:58:01.042750+00:00)
--------------------------------------------------------------------------------

Only variables without service information should be written to the file:

:14.5;:4630;

Thx!

I am solved this case:
sed -i ‘1,2d’ /var/www/html/sensors

Can you please elaborate? I am also trying to remove the first 2 lines of the notify.file log.