Remove all error_logger output.
Remove all error_logger output.

At high load, mero is very noisy. There's no reason to fill the logs so
strenuously with these logs and, perhaps, they are detrimental. They
certainly limit our ability to use the logs for diagnosis.

Signed-off-by: Brian L. Troutwine <395fcacfb919d03aa988978fa815bab65068df54@adroll.com>

AdRoll/mero