[vtk] Drop old comment about VTK_USE_GNUR

[Orion Poplawski]

commit e1ead84e8a03d48dea625abf55b72d44a0611ff7
Author: Orion Poplawski <orion at nwra.com>
Date:   Fri Jul 26 16:43:04 2013 -0600

    Drop old comment about VTK_USE_GNUR

 vtk.spec |    2 --
 1 files changed, 0 insertions(+), 2 deletions(-)
---
diff --git a/vtk.spec b/vtk.spec
index fd1d4b9..f276caa 100644
--- a/vtk.spec
+++ b/vtk.spec
@@ -234,8 +234,6 @@ pushd build
 #  -DVTK_DATA_ROOT:PATH=%{_datadir}/vtkdata-%{version} \
 # Not working, see http://public.kitware.com/Bug/view.php?id=11978
 # -DVTK_USE_ODBC=ON \
-# Not working, see http://public.kitware.com/Bug/view.php?id=10779
-# -DVTK_USE_GNU_R:BOOL=ON \
 # Commented old flags in case we'd like to reactive some of them
 # -DVTK_USE_DISPLAY:BOOL=OFF \ # This prevents building of graphics tests
 # -DVTK_USE_MPI:BOOL=ON \