Removed an if condition that was needed temporarily while reworking
PropertiesConfiguration.

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/configuration/trunk@1464942 13f79535-47bb-0310-9956-ffa450edef68
[CONFIGURATION-515] Made some methods of PropertiesConfiguration.PropertiesWriter protected.

Client applications can now adapt the escaping logic when saving properties
files by subclassing PropertiesWriter.

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/configuration/trunk@1464943 13f79535-47bb-0310-9956-ffa450edef68