File no_vtk_require.patch of Package mayavi

--- a/mayavi/__init__.py
+++ b/mayavi/__init__.py
@@ -15,7 +15,6 @@
     'pygments',  # This is only needed for the Qt backend but we add it anyway.
     'traits>=4.6.0',
     'traitsui>=6.0.0',
-    'vtk'
 ]
 
 __extras_require__ = {
--- a/mayavi.egg-info/requires.txt
+++ b/mayavi.egg-info/requires.txt
@@ -5,7 +5,6 @@
 pygments
 traits>=4.6.0
 traitsui>=6.0.0
-vtk
 
 [app]
 envisage
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,4 +6,3 @@
 Sphinx
 traits>=4.6.0
 traitsui>=6.0.0
-vtk