Remove Element-specifc screen-sharing code out of the js-sdk

Signed-off-by: Šimon Brandner <simon.bra.ag@gmail.com>

src/@types/global.d.ts

@@ -33,14 +33,9 @@ declare global {
     }
 
     interface Window {
-        electron?: Electron;
         webkitAudioContext: typeof AudioContext;
     }
 
-    interface Electron {
-        getDesktopCapturerSources(options: GetSourcesOptions): Promise<Array<DesktopCapturerSource>>;
-    }
-
     interface Crypto {
         webkitSubtle?: Window["crypto"]["subtle"];
     }
@@ -73,15 +68,6 @@ declare global {
         thumbnailURL: string;
     }
 
-    interface GetSourcesOptions {
-        types: Array<string>;
-        thumbnailSize?: {
-            height: number;
-            width: number;
-        };
-        fetchWindowIcons?: boolean;
-    }
-
     interface HTMLAudioElement {
         // sinkId & setSinkId are experimental and typescript doesn't know about them
         sinkId: string;

src/webrtc/call.ts

@@ -226,21 +226,6 @@ const FALLBACK_ICE_SERVER = 'stun:turn.matrix.org';
 /** The length of time a call can be ringing for. */
 const CALL_TIMEOUT_MS = 60000;
 
-/** Retrieves sources from desktopCapturer */
-export function getDesktopCapturerSources(): Promise<Array<DesktopCapturerSource>> {
-    const options: GetSourcesOptions = {
-        thumbnailSize: {
-            height: 176,
-            width: 312,
-        },
-        types: [
-            "screen",
-            "window",
-        ],
-    };
-    return window.electron.getDesktopCapturerSources(options);
-}
-
 export class CallError extends Error {
     code: string;