fix oss-fuzz build

Change-Id: Id8b33ac7b3988a8fef7bff3b03cfe9c1c167adc3
Reviewed-on: https://gerrit.libreoffice.org/61090
Tested-by: Jenkins
Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>

vcl/null/printerinfomanager.cxx

@@ -90,26 +90,6 @@ const PrinterInfo& PrinterInfoManager::getPrinterInfo( const OUString& /* rPrint
     return aEmptyInfo;
 }
 
-bool PrinterInfoManager::writePrinterConfig()
-{
-    return false;
-}
-
-bool PrinterInfoManager::addPrinter( const OUString& /* rPrinterName */, const OUString& /* rDriverName */ )
-{
-    return false;
-}
-
-bool PrinterInfoManager::removePrinter( const OUString& /* rPrinterName */, bool /* bCheckOnly */ )
-{
-    return false;
-}
-
-bool PrinterInfoManager::setDefaultPrinter( const OUString& /* rPrinterName */ )
-{
-    return false;
-}
-
 bool PrinterInfoManager::checkFeatureToken( const OUString& /* rPrinterName */, const char* /* pToken */ ) const
 {
     (void) this;