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

extensions/guacamole-auth-jdbc/modules/guacamole-auth-jdbc-postgresql/src/main/java/org/apache/guacamole/auth/postgresql/PostgreSQLGuacamoleProperties.java

@@ -157,15 +157,6 @@ public class PostgreSQLGuacamoleProperties {
 
     };
 
-    public static final IntegerGuacamoleProperty
-            POSTGRESQL_DEFAULT_CONNECTION_WEIGHT =
-            new IntegerGuacamoleProperty() {
-
-        @Override
-        public String getName() { return "postgresql-default-connection-weight"; }
-
-    };
-
     /**
      * The maximum number of concurrent connections to allow to any one
      * connection group. Zero denotes unlimited.