Remove duplicated mysql setup for galera slave

salt/files/minion.conf

@@ -100,14 +100,6 @@ mongodb.user: '{{ pillar.mongodb.server.admin.user }}'
 mongodb.password: '{{ pillar.mongodb.server.admin.password }}'
 {%- endif %}
 
-{%- if pillar.get('galera', {}).slave is defined %}
-mysql.unix_socket: /var/run/mysqld/mysqld.sock
-mysql.user: '{{ pillar.galera.slave.admin.user }}'
-mysql.pass: '{{ pillar.galera.slave.admin.password }}'
-mysql.db: 'mysql'
-mysql.charset: 'utf8'
-{%- endif %}
-
 {%- if pillar.get('postgresql', {}).server is defined %}
 postgres.user: 'postgres'
 postgres.pass: ''