fix(codex): remove duplicate agents table from reference config (#1032)

.codex/config.toml

@@ -101,7 +101,6 @@ approval_policy = "never"
 sandbox_mode = "workspace-write"
 web_search = "live"
 
-[agents]
 [agents]
 # Multi-agent role limits and local role definitions.
 # These map to `.codex/agents/*.toml` and mirror the repo's explorer/reviewer/docs workflow.