GUACAMOLE-102: Clean up code style issues, remove the unnecessary getDefaultConnectionWeight method.

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

@@ -200,14 +200,6 @@ public class PostgreSQLEnvironment extends JDBCEnvironment {
         );
     }
 
-    @Override
-    public int getDefaultConnectionWeight() throws GuacamoleException {
-        return getProperty(
-            PostgreSQLGuacamoleProperties.POSTGRESQL_DEFAULT_CONNECTION_WEIGHT,
-            DEFAULT_CONNECTION_WEIGHT
-        );
-    }
-
     @Override
     public int getDefaultMaxGroupConnections() throws GuacamoleException {
         return getProperty(