diff --git a/conf/optimize_mysql_tables.conf.sample b/conf/optimize_mysql_tables.conf.sample
deleted file mode 100644
index a5f10e3..0000000
--- a/conf/optimize_mysql_tables.conf.sample
+++ /dev/null
@@ -1,34 +0,0 @@
-# ----------------------------------------------------
-# ---
-# - Parameter Settings for Script 'optimize_mysql_tables.sh'
-# ---
-# ----------------------------------------------------
-
-
-# - MySQL / MariaDB credentials
-# -
-# - Giving password on command line is insecure an sind mysql 5.5
-# - you will get a warning doing so.
-# - 
-# - Reading username/password fro file ist also possible, using MySQL/MariaDB
-# - commandline parameter '--defaults-file'.
-# - 
-# - Since Version 5.6, that method is considered as insecure. 
-# - To avoid giving the password on command line, we use an 
-# - encrypted option file
-# -
-# -    Create (encrypted) option file:
-# -    $ mysql_config_editor set --login-path=local --socket=/var/run/mysqld/mysqld.sock  --user=backup --password
-# -    $ Password:
-# -
-# -    Use of option file:
-# -    $ mysql --login-path=local ...
-# -
-# - Example
-# -    mysql_credential_args="--login-path=local"
-# -    mysql_credential_args="--defaults-file=/etc/mysql/debian.cnf" (Debian default)
-# -    mysql_credential_args="--defaults-file=/usr/local/mysql/sys-maint.cnf"
-# -
-# - Defaults to mysql_credential_args="--login-path=local"
-# -
-mysql_credential_args=""