Removes now unneeded safety net check

src/vs/workbench/browser/layout.ts

@@ -568,9 +568,7 @@ export abstract class Layout extends Disposable implements IWorkbenchLayoutServi
 			return;
 		}
 
-		// The `firstRun` flag check is a safety-net hack for Codespaces, until we can verify the first open fix
-		const firstOpen = (storageService.isNew(StorageScope.WORKSPACE) || (defaultLayout as { firstRun: boolean })?.firstRun);
-		if (!firstOpen) {
+		if (!storageService.isNew(StorageScope.WORKSPACE)) {
 			return;
 		}
 
@@ -791,9 +789,7 @@ export abstract class Layout extends Disposable implements IWorkbenchLayoutServi
 
 	private getInitialFilesToOpen(): { filesToOpenOrCreate?: IPath[], filesToDiff?: IPath[] } | undefined {
 		const defaultLayout = this.environmentService.options?.defaultLayout;
-
-		// The `firstRun` flag check is a safety-net hack for Codespaces, until we can verify the first open fix
-		if (defaultLayout?.editors?.length && (this.storageService.isNew(StorageScope.WORKSPACE) || (defaultLayout as { firstRun: boolean })?.firstRun)) {
+		if (defaultLayout?.editors?.length && this.storageService.isNew(StorageScope.WORKSPACE)) {
 			this._openedDefaultEditors = true;
 
 			return {