Fix some eslint errors

Huh, I guess my desktop workstation doesn't have this commit hook set
up. Now that I'm using my Mac again, it's catching some things I
missed!

app/javascript/wardrobe-2020/AppProvider.js

@@ -14,7 +14,6 @@ import { ApolloProvider } from "@apollo/client";
 import { BrowserRouter } from "react-router-dom";
 import { css, Global } from "@emotion/react";
 import { QueryClient, QueryClientProvider } from "@tanstack/react-query";
-import produce from "immer";
 
 import apolloClient from "./apolloClient";
 

app/javascript/wardrobe-2020/WardrobePage/PosePicker.js

@@ -31,7 +31,6 @@ import getVisibleLayers from "../components/getVisibleLayers";
 import { OutfitLayers } from "../components/OutfitPreview";
 import SupportOnly from "./support/SupportOnly";
 import { useAltStylesForSpecies } from "../loaders/alt-styles";
-import useSupport from "./support/useSupport";
 import { useLocalStorage } from "../util";
 
 // From https://twemoji.twitter.com/, thank you!
@@ -81,7 +80,6 @@ function PosePicker({
     "DTIPosePickerIsInSupportMode",
     false,
   );
-  const { isSupportUser } = useSupport();
   const toast = useToast();
 
   const loading = posesQuery.loading || altStylesQuery.isLoading;
@@ -280,7 +278,8 @@ function PosePicker({
   );
 }
 
-function PosePickerButton({ pose, altStyle, isOpen, loading, ...props }, ref) {
+const PosePickerButton = React.forwardRef(
+  ({ pose, altStyle, isOpen, loading, ...props }, ref) => {
     const theme = useTheme();
 
     const icon = altStyle != null ? twemojiSunglasses : getIcon(pose);
@@ -345,8 +344,8 @@ function PosePickerButton({ pose, altStyle, isOpen, loading, ...props }, ref) {
         )}
       </ClassNames>
     );
-}
-PosePickerButton = React.forwardRef(PosePickerButton);
+  },
+);
 
 function PosePickerTable({ poseInfos, onChange, initialFocusRef }) {
   return (

app/javascript/wardrobe-2020/WardrobePage/support/useSupport.js

@@ -1,5 +1,3 @@
-import * as React from "react";
-
 import { getSupportSecret } from "../../impress-2020-config";
 
 /**

app/javascript/wardrobe-2020/WardrobePage/useOutfitState.js

@@ -700,7 +700,7 @@ function getZonesAndItems(itemsById, wornItemIds, closetedItemIds) {
   // used. Then, loop over them again, appending the ID number if count > 1.
   const labelCounts = new Map();
   for (const itemZoneGroup of zonesAndItems) {
-    const { zoneId, zoneLabel } = itemZoneGroup;
+    const { zoneLabel } = itemZoneGroup;
 
     const count = labelCounts.get(zoneLabel) ?? 0;
     labelCounts.set(zoneLabel, count + 1);