Deduplicate zsh fork test setup (#39790)

## What changed

Reuse the shared `build_zsh_fork_test` helper in the unified exec approval
suite and remove its identical suite-specific wrapper.

GitOrigin-RevId: 0593f0e1a56737eba1d491872a44d14e9171dbfb

codex-rs/core/tests/common/zsh_fork.rs

@@ -89,27 +89,6 @@ where
     builder.build(server).await
 }
 
-pub async fn build_unified_exec_zsh_fork_test<F>(
-    server: &wiremock::MockServer,
-    runtime: ZshForkRuntime,
-    approval_policy: AskForApproval,
-    permission_profile: PermissionProfile,
-    pre_build_hook: F,
-) -> Result<TestCodex>
-where
-    F: FnOnce(&Path) + Send + 'static,
-{
-    let mut builder = zsh_fork_test_builder(runtime, approval_policy)
-        .with_pre_build_hook(pre_build_hook)
-        .with_config(move |config| {
-            config
-                .permissions
-                .set_permission_profile(permission_profile)
-                .expect("set permission profile");
-        });
-    builder.build(server).await
-}
-
 pub fn zsh_fork_test_builder(
     runtime: ZshForkRuntime,
     approval_policy: AskForApproval,

codex-rs/core/tests/suite/unified_exec_zsh_fork_approvals.rs

@@ -40,7 +40,7 @@ use core_test_support::test_codex::local_selections;
 use core_test_support::test_codex::turn_permission_fields;
 use core_test_support::wait_for_event;
 use core_test_support::wait_for_event_with_timeout;
-use core_test_support::zsh_fork::build_unified_exec_zsh_fork_test;
+use core_test_support::zsh_fork::build_zsh_fork_test;
 use core_test_support::zsh_fork::restrictive_workspace_write_profile;
 use core_test_support::zsh_fork::zsh_fork_runtime;
 use pretty_assertions::assert_eq;
@@ -619,7 +619,7 @@ where
     };
 
     let server = start_mock_server().await;
-    let test = build_unified_exec_zsh_fork_test(
+    let test = build_zsh_fork_test(
         &server,
         runtime,
         approval_policy,