subset embedding UI improvement (#1667)

* add user flag feature to annomatrix

* add implicit subsetting for partial embeddings

* lint

* add embedding cell counts to embedding choice menu

* layout

client/src/actions/selection.js

@@ -185,31 +185,6 @@ export const graphLassoEndAction = (embName, polygon) => async (
   });
 };
 
-export const layoutChoiceAction = (newLayoutChoice) => async (
-  dispatch,
-  getState
-) => {
-  /*
-  On layout choice, make sure we have selected all on the previous layout, AND the new
-  layout.
-  */
-  const { obsCrossfilter: prevObsCrossfilter, layoutChoice } = getState();
-
-  let obsCrossfilter = await prevObsCrossfilter.select(
-    "emb",
-    layoutChoice.current,
-    { mode: "all" }
-  );
-  obsCrossfilter = await obsCrossfilter.select("emb", newLayoutChoice, {
-    mode: "all",
-  });
-  dispatch({
-    type: "set layout choice",
-    layoutChoice: newLayoutChoice,
-    obsCrossfilter,
-  });
-};
-
 /*
 Differential expression set selection
 */