remove experimental ontology support (#2300)

* remove experimental ontology support

* lint

* remove ontologies from unit tests

* additional test changes

client/src/reducers/index.js

@@ -18,7 +18,6 @@ import annotations from "./annotations";
 import genesets from "./genesets";
 import genesetsUI from "./genesetsUI";
 import autosave from "./autosave";
-import ontology from "./ontology";
 import centroidLabels from "./centroidLabels";
 import pointDialation from "./pointDilation";
 import { reembedController } from "./reembed";
@@ -31,7 +30,6 @@ const Reducer = undoable(
     ["config", config],
     ["annoMatrix", annoMatrix],
     ["obsCrossfilter", obsCrossfilter],
-    ["ontology", ontology],
     ["annotations", annotations],
     ["genesets", genesets],
     ["genesetsUI", genesetsUI],