refactor(server): remove global server management functions

Author: MBanucu

src/web/server/server.ts

@@ -116,22 +116,3 @@ export class PTYServer implements Disposable {
     return `${this.server.url.origin.replace(/^http/, 'ws')}${wsPath}`
   }
 }
-
-let globalServer: PTYServer | undefined
-
-export async function startWebServer(options?: { port?: number }): Promise<string> {
-  globalServer = await PTYServer.createServer()
-  if (options?.port) {
-    // Note: Since port is 0, we can't change it, but for compatibility, ignore
-  }
-  return globalServer.server.url.toString()
-}
-
-export function getServerUrl(): string | undefined {
-  return globalServer?.server.url.toString()
-}
-
-export function stopWebServer(): void {
-  globalServer?.[Symbol.dispose]()
-  globalServer = undefined
-}