IDE: Clear old left-over values when saving component palette configuration.

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@46867 4005530d-fff6-0310-9dd1-cebe43e6787f
Converter: Clear old left-over values when saving configuration. (Remove a hack)

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@46868 4005530d-fff6-0310-9dd1-cebe43e6787f