[cpm] Removed MPI dependencies in vtk.

Lars Bilke requested to merge bilke/ogs:fix-petsc into master

For writing output with PETSc we just use the vtkXMLPUnstructuredGridWriter which has no dependency on MPI and we therefore don't need the vtkMPIController.

Fixes #3289 (closed).

  1. Feature description was added to the changelog
Edited by Lars Bilke

Merge request reports