x0vncserver does not support SetDesktopSize; remove -AcceptSetDesktopSize

Add a Configuration::removeParam to support such cases.
diff --git a/unix/x0vncserver/x0vncserver.cxx b/unix/x0vncserver/x0vncserver.cxx
index 744f802..22525d5 100644
--- a/unix/x0vncserver/x0vncserver.cxx
+++ b/unix/x0vncserver/x0vncserver.cxx
@@ -258,6 +258,9 @@
 
   Configuration::enableServerParams();
 
+  // Disable configuration parameters which we do not support
+  Configuration::removeParam("AcceptSetDesktopSize");
+
   for (int i = 1; i < argc; i++) {
     if (Configuration::setParam(argv[i]))
       continue;