refactor(tui): centralize application exit (#31524)

packages/opencode/src/plugin/tui/internal.ts

@@ -1,4 +1,3 @@
-import { Flag } from "@opencode-ai/core/flag/flag"
 import { createBuiltinPlugins, type BuiltinTuiPlugin } from "@opencode-ai/tui/builtins"
 import type { RuntimeFlags } from "@/effect/runtime-flags"
 
@@ -7,6 +6,5 @@ export type InternalTuiPlugin = BuiltinTuiPlugin
 export function internalTuiPlugins(flags: Pick<RuntimeFlags.Info, "experimentalEventSystem">): InternalTuiPlugin[] {
   return createBuiltinPlugins({
     experimentalEventSystem: flags.experimentalEventSystem,
-    experimentalSessionSwitcher: Flag.OPENCODE_EXPERIMENTAL_SESSION_SWITCHER,
   })
 }