Revert "EB: set new logging parameter (see OpenConext/OpenConext-engineblock#1792)"

This reverts commit 443ea2f.

Author: baszoetekouw

roles/engineblock/templates/parameters.yml.j2

@@ -115,7 +115,6 @@ parameters:
     ## NOTICE: normal but significant condition
     ## INFO: informational messages
     ## DEBUG: debug messages
-    logger.handler: syslog
     logger.channel: engineblock
     logger.fingers_crossed.passthru_level: {{ engine_logging_passthru_level }}
     logger.fingers_crossed.action_level: ERROR