Remove memcached.ini reference to deprecated sess_lock_max_wait setting

Author: sodabrew

memcached.ini

@@ -20,8 +20,7 @@
 
 ; The time, in seconds, before a lock should release itself.
 ; Setting to 0 results in the default behaviour, which is to
-; use the memcached.sess_lock_max_wait setting. If that is
-; also 0, max_execution_time will be used.
+; use PHP's max_execution_time.
 ;memcached.sess_lock_expire = 0;
 
 ; memcached session key prefix