ref(SS): remove legacy SS for electron.

globals.d.ts

         JITSI_MEET_LITE_SDK?: boolean;
         interfaceConfig?: any;
         JitsiMeetJS?: any;
-        JitsiMeetElectron?: any;
         PressureObserver?: any;
         PressureRecord?: any;
         ReactNativeWebView?: any;

modules/API/external/external_api.js

      * Returns the state of availability electron share screen via external api.
      *
      * @returns {Promise}
+     *
+     * TODO: should be removed after we make sure that all Electron clients use only versions
+     * after with the legacy SS suport was removed from the electron SDK. If we remove it now the SS for Electron
+     * clients with older versions wont work.
      */
     _isNewElectronScreensharingSupported() {
         return this._transport.sendRequest({

react/features/desktop-picker/functions.ts

 import logger from './logger';
-import { ElectronWindowType } from './types';
-
 
 /**
  * Begins a request to get available DesktopCapturerSources.
  * @returns {Function}
  */
 export function obtainDesktopSources(options: { thumbnailSize?: Object; types: string[]; }) {
-    const { JitsiMeetElectron } = window as ElectronWindowType;
-
-    // TODO: delete this after 2 releases
-    if (JitsiMeetElectron?.obtainDesktopStreams) {
-        return new Promise((resolve, reject) => {
-            JitsiMeetElectron.obtainDesktopStreams(
-                (sources: Array<{ id: string; }>) => resolve(_separateSourcesByType(sources)),
-                (error: Error) => {
-                    logger.error(
-                        `Error while obtaining desktop sources: ${error}`);
-                    reject(error);
-                },
-                options
-            );
-        });
-    }
-
     return APP.API.requestDesktopSources(options).then(
         ({ sources, error }: { error: Error; sources: Array<{ id: string; }>; }) => {
             if (sources) {
         });
 }
 
-/**
- * Check usage of old jitsi meet electron version.
- *
- * @returns {boolean} True if we use old jitsi meet electron, otherwise false.
- */
-export function oldJitsiMeetElectronUsage() {
-    const { JitsiMeetElectron } = window as ElectronWindowType;
-
-    if (JitsiMeetElectron?.obtainDesktopStreams) {
-        return true;
-    }
-
-    return false;
-}
-
 /**
  * Converts an array of DesktopCapturerSources to an object with types for keys
  * and values being an array with sources of the key's type.

react/features/desktop-picker/types.ts

-export type ElectronWindowType = {
-    JitsiMeetElectron?: {
-        obtainDesktopStreams: Function;
-    } ;
-} & typeof window;