Revert "Fixes #3045 : Change SLES 11 dependency db43 to libdb4_5"

This reverts commit 4a35fc1de5687d329acaaf1338ad94bc82f9052b.
Merge branch 'branches/rudder/2.3' into branches/rudder/2.4

* branches/rudder/2.3:
  Revert "Fixes #3045 : Change SLES 11 dependency db43 to libdb4_5"