Revert "Option to Notify Workspace Owner When Usage Limit is Reached" (#17391)

Reverts openai/codex#16969

#sev3-2026-04-10-accountscheckversion-500s-for-openai-workspace-7300

codex-rs/core/src/state/session_tests.rs

@@ -48,7 +48,6 @@ async fn set_rate_limits_defaults_limit_id_to_codex_when_missing() {
         }),
         secondary: None,
         credits: None,
-        spend_control: None,
         plan_type: None,
     });
 
@@ -76,7 +75,6 @@ async fn set_rate_limits_defaults_to_codex_when_limit_id_missing_after_other_buc
         }),
         secondary: None,
         credits: None,
-        spend_control: None,
         plan_type: None,
     });
     state.set_rate_limits(RateLimitSnapshot {
@@ -89,7 +87,6 @@ async fn set_rate_limits_defaults_to_codex_when_limit_id_missing_after_other_buc
         }),
         secondary: None,
         credits: None,
-        spend_control: None,
         plan_type: None,
     });
 
@@ -121,7 +118,6 @@ async fn set_rate_limits_carries_credits_and_plan_type_from_codex_to_codex_other
             unlimited: false,
             balance: Some("50".to_string()),
         }),
-        spend_control: None,
         plan_type: Some(codex_protocol::account::PlanType::Plus),
     });
 
@@ -135,7 +131,6 @@ async fn set_rate_limits_carries_credits_and_plan_type_from_codex_to_codex_other
         }),
         secondary: None,
         credits: None,
-        spend_control: None,
         plan_type: None,
     });
 
@@ -155,7 +150,6 @@ async fn set_rate_limits_carries_credits_and_plan_type_from_codex_to_codex_other
                 unlimited: false,
                 balance: Some("50".to_string()),
             }),
-            spend_control: None,
             plan_type: Some(codex_protocol::account::PlanType::Plus),
         })
     );