#1092 again fixed (PartialMedium changed in a non-backwards compatible way):
The fix with the types was not good, because package Interfaces.Types was inherited
into PartialPackages with extends and then two type definitions have been present.
Removed the newly introduced "obsolete" type definitions.


git-svn-id: https://svn.modelica.org/projects/Modelica/trunk@6337 7ce873d0-865f-4ce7-a662-4bb36ea78beb