Remove unnecessary log configuration

conf/apache2/sites-available/webmail.conf

@@ -6,10 +6,6 @@
 
         SetEnvIf X-Forwarded-Proto https HTTPS=on
 
-        LogFormat "%v %h %l %u %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-Agent}i\"" http_host_combined
-        CustomLog "|/usr/bin/logger -t apache -p local4.info" http_host_combined
-        LogLevel info
-
         RewriteEngine On
         RewriteRule ^/(sso_login|sso_logout)$ - [END]