drop settingsToggleShowDocs

We can change the event handler in App.tsx do we no longer need the
settingsToggleShowDocs action or related sagas.

src/settings/actions.ts

@@ -1,9 +0,0 @@
-// SPDX-License-Identifier: MIT
-// Copyright (c) 2022 The Pybricks Authors
-
-import { createAction } from '../actions';
-
-/** Requests to toggle the showDocs setting. */
-export const settingsToggleShowDocs = createAction(() => ({
-    type: 'editor.action.toggleShowDocs',
-}));

src/settings/sagas.test.ts

@@ -1,23 +0,0 @@
-// SPDX-License-Identifier: MIT
-// Copyright (c) 2022 The Pybricks Authors
-//
-// Tests for settings sagas.
-
-import { AsyncSaga } from '../../test';
-import { settingsToggleShowDocs } from './actions';
-import settings from './sagas';
-
-describe('handleToggleShowDocs', () => {
-    it('should toggle the showDocs setting', async () => {
-        const key = 'setting.showDocs';
-        const saga = new AsyncSaga(settings);
-
-        saga.put(settingsToggleShowDocs());
-        expect(localStorage.getItem(key)).toBe('true');
-
-        saga.put(settingsToggleShowDocs());
-        expect(localStorage.getItem(key)).toBe('false');
-
-        await saga.end();
-    });
-});

src/settings/sagas.ts

@@ -1,32 +0,0 @@
-// SPDX-License-Identifier: MIT
-// Copyright (c) 2022 The Pybricks Authors
-
-// This manages settings by storing them in local storage whenever the app
-// request to set a setting. When local storage changes, it triggers a did
-// change action that can be used by reducers to compute the new state.
-
-import { call, takeEvery } from 'typed-redux-saga/macro';
-import { settingsToggleShowDocs } from './actions';
-
-/**
- * Hack to wire editor action to settings hook.
- *
- * There are a few places where using toggleIsSettingShowDocsEnabled() doesn't
- * work because it needs to be called from outside of a React component that
- * doesn't get updated when state changes.
- */
-function* handleToggleShowDocs(): Generator {
-    // HACK: This depends on the implementation detail that
-    // useSettingIsShowDocsEnabled() uses useLocalStorage() internally.
-    yield* call(() => {
-        const key = 'setting.showDocs';
-        const oldValue = localStorage.getItem(key);
-        const newValue = JSON.stringify(!(oldValue && JSON.parse(oldValue)));
-        localStorage.setItem(key, newValue);
-        window.dispatchEvent(new Event('local-storage'));
-    });
-}
-
-export default function* (): Generator {
-    yield* takeEvery(settingsToggleShowDocs, handleToggleShowDocs);
-}