src/vs/base/parts/ipc/electron-main/ipcMain.ts/ValidatedIpcMain/removeListener
class ValidatedIpcMain:	removeListener(channel: string, listener: ipcMainListener): this {
		const wrappedListener = this.mapListenerToWrapper.get(listener);
		if (wrappedListener) {
			unsafeIpcMain.removeListener(channel, wrappedListener);
			this.mapListenerToWrapper.delete(listener);
		}

		return this;
	}