ref(settings): remove changeLocalDisplayName action

modules/API/API.js

 import { LOCAL_PARTICIPANT_DEFAULT_ID } from '../../react/features/base/participants/constants';
 import {
     getLocalParticipant,
+    getNormalizedDisplayName,
     getParticipantById,
     getScreenshareParticipantIds,
     getVirtualScreenshareParticipantByOwnerId,
 import { isScreenAudioSupported } from '../../react/features/screen-share/functions';
 import { toggleScreenshotCaptureSummary } from '../../react/features/screenshot-capture/actions';
 import { isScreenshotCaptureEnabled } from '../../react/features/screenshot-capture/functions';
-import { changeLocalDisplayName } from '../../react/features/settings/actions.web';
 import SettingsDialog from '../../react/features/settings/components/web/SettingsDialog';
 import { SETTINGS_TABS } from '../../react/features/settings/constants';
 import { playSharedVideo, stopSharedVideo } from '../../react/features/shared-video/actions.any';
         },
         'display-name': displayName => {
             sendAnalytics(createApiEvent('display.name.changed'));
-            APP.store.dispatch(changeLocalDisplayName(displayName));
+            APP.store.dispatch(updateSettings({ displayName: getNormalizedDisplayName(displayName) }));
         },
         'local-subject': localSubject => {
             sendAnalytics(createApiEvent('local.subject.changed'));

react/features/settings/actions.native.ts

         }));
     };
 }
-
-/**
-* Changes the display name for the local user.
-*
-* @param {string} _nickname - The new display name.
-* @returns {Function}
-*/
-export function changeLocalDisplayName(_nickname = '') {
-    // not used on mobile.
-    return (_dispatch: IStore['dispatch'], _getState: IStore['getState']) => {
-        // no-op action.
-    };
-}

react/features/settings/actions.web.ts

         const currentState = getProfileTabProps(getState());
 
         if (newState.displayName !== currentState.displayName) {
-            dispatch(changeLocalDisplayName(newState.displayName));
+            dispatch(updateSettings({ displayName: getNormalizedDisplayName(newState.displayName) }));
         }
 
         if (newState.email !== currentState.email) {
     };
 }
 
-/**
-* Changes the display name for the local user.
-*
-* @param {string} nickname - The new display name.
-* @returns {Function}
-*/
-export function changeLocalDisplayName(nickname = '') {
-    return (dispatch: IStore['dispatch']) => {
-        const formattedNickname = getNormalizedDisplayName(nickname);
-
-        dispatch(updateSettings({ displayName: formattedNickname }));
-    };
-}
-
 /**
  * Submits the settings from the "Sounds" tab of the settings dialog.
  *