Fix a bug in the Utils.isMacOS function and remove some unused functions.

jvergara

09.03.2007 c26a450e176ec80a194348ab02a4a5960334536e

 opendj-sdk/opends/src/quicksetup/org/opends/quicksetup/util/Utils.java

@@ -320,7 +320,7 @@
   */
  public static boolean isMacOS()
  {
    return containsOsProperty("Mac OS");
    return containsOsProperty("mac os");
  }

  /**