minor: fixed warning

SVN: 15408

datastore_server/source/java/ch/systemsx/cisd/openbis/dss/rpc/client/cli/CommandLs.java

@@ -50,7 +50,6 @@ class CommandLs extends AbstractCommand
         }
 
         // Accessed via reflection
-        @SuppressWarnings("unused")
         public void setRecursive(boolean recursive)
         {
             this.recursive = recursive;