GUACAMOLE-102: Code cleanup - remove unused default parameters; improve commentary and use more standard variable names.

extensions/guacamole-auth-jdbc/modules/guacamole-auth-jdbc-mysql/src/main/java/org/apache/guacamole/auth/mysql/MySQLGuacamoleProperties.java

@@ -174,18 +174,6 @@ public class MySQLGuacamoleProperties {
 
     };
 
-    /**
-     * The connection weight for connections in balancing groups.
-     */
-    public static final IntegerGuacamoleProperty
-            MYSQL_DEFAULT_CONNECTION_WEIGHT =
-            new IntegerGuacamoleProperty() {
-       
-        @Override
-        public String getName() { return "mysql-default-connection-weight"; }
-
-    };
-
     /**
      * The maximum number of concurrent connections to allow to any one
      * connection group by an individual user. Zero denotes