Don't set vtk on viewport's layout; rely on viewportSpecificData

extensions/ohif-vtk-extension/src/utils/setMPRLayout.js

@@ -33,7 +33,7 @@ export default function setMPRLayout(displaySet) {
       }*/
 
       const data = {
-        plugin: 'vtk',
+        // plugin: 'vtk',
         vtk: {
           mode: 'mpr', // TODO: not used
           afterCreation: api => {

extensions/ohif-vtk-extension/src/utils/setViewportToVTK.js

@@ -14,7 +14,7 @@ export default function setViewportToVTK(
     }*/
 
     const data = {
-      plugin: 'vtk',
+      // plugin: 'vtk',
       vtk: {
         mode: 'mpr', // TODO: not used
         afterCreation: api => {