This is not something I recommend you do, as this limits the ability to properly obtain details about errors in applications which reside on your server.  However there are times where the application developers and support staff are reluctant to resolve the issue so you take steps to prevent these error log messages from running your system out of space.   – I choose to kill them all (not the dev’s just the messages)

Go to Control Panel.
Click System.
Go to the Advanced tab.
Click Error Reporting.
Click the “Disable Error Reporting” radio box, but select the “But notify me when Critical Errors Occur”.