Removed superfluous copy of rdbms::Conn object passed to...

Removed superfluous copy of rdbms::Conn object passed to RdbmsCatalogueGetArchiveFilesItor() constructor.

catalogue/RdbmsCatalogueGetArchiveFilesItor.cpp

@@ -78,7 +78,7 @@ namespace {
 //------------------------------------------------------------------------------
 RdbmsCatalogueGetArchiveFilesItor::RdbmsCatalogueGetArchiveFilesItor(
   log::Logger &log,
-  rdbms::Conn conn,
+  rdbms::Conn &&conn,
   const TapeFileSearchCriteria &searchCriteria,
   const std::string &tempDiskFxidsTableName) :
   m_log(log),

catalogue/RdbmsCatalogueGetArchiveFilesItor.hpp

@@ -46,7 +46,7 @@ public:
    */
   RdbmsCatalogueGetArchiveFilesItor(
     log::Logger &log,
-    rdbms::Conn conn,
+    rdbms::Conn &&conn,
     const TapeFileSearchCriteria &searchCriteria,
     const std::string &tempDiskFxidsTableName);