debug: do not auto focus other threads / sessions while a session is still running

fixes #65920

src/vs/workbench/parts/debug/electron-browser/debugService.ts

@@ -489,17 +489,7 @@ export class DebugService implements IDebugService {
 	}
 
 	private registerSessionListeners(session: IDebugSession): void {
-		const sessionRunningScheduler = new RunOnceScheduler(() => {
-			// Do not immediatly focus another session or thread if a session is running
-			// Stepping in a session should preserve that session focused even if some continued events happen
-			if (session.state === State.Running && this.viewModel.focusedSession === session) {
-				this.focusStackFrame(undefined);
-			}
-		}, 200);
 		this.toDispose.push(session.onDidChangeState(() => {
-			if (session.state === State.Running && this.viewModel.focusedSession === session) {
-				sessionRunningScheduler.schedule();
-			}
 			if (session === this.viewModel.focusedSession) {
 				this.onStateChange();
 			}