[codex] Remove Codex SDK canary runtime (#220)

* Revert "fix: drain sdk follow-up turns (#219)"

This reverts commit 807828e0ce.

* Revert "feat: feature-flag Codex SDK runner (#218)"

This reverts commit 879d16235f.

src/agent-runner.ts

@@ -61,30 +61,6 @@ export interface AgentOutput {
   };
 }
 
-interface ActiveProcessOptions {
-  drainFollowUpsAfterRun?: boolean;
-}
-
-function isCodexSdkRuntimeMode(
-  env: Record<string, string>,
-  input: AgentInput,
-): boolean {
-  const runtime = env.CODEX_RUNTIME?.trim().toLowerCase();
-  if (runtime !== 'sdk') return false;
-  if (input.prompt.trim() === '/compact') return false;
-  if (input.codexGoals === true || env.CODEX_GOALS === 'true') return false;
-
-  const rawRoles = env.CODEX_RUNTIME_SDK_ROLES?.trim();
-  if (!rawRoles) return true;
-  const role = input.roomRoleContext?.role?.trim().toLowerCase();
-  if (!role) return false;
-  return rawRoles
-    .split(',')
-    .map((item) => item.trim().toLowerCase())
-    .filter(Boolean)
-    .includes(role);
-}
-
 function readRoomSkillOverridesForRunner(
   chatJid: string,
 ): StoredRoomSkillOverride[] {
@@ -150,7 +126,6 @@ export async function runAgentProcess(
     proc: ChildProcess,
     processName: string,
     runtimeIpcDir: string,
-    options?: ActiveProcessOptions,
   ) => void,
   onOutput?: (output: AgentOutput) => Promise<void>,
   envOverrides?: Record<string, string>,
@@ -211,11 +186,6 @@ export async function runAgentProcess(
   const safeName = group.folder.replace(/[^a-zA-Z0-9-]/g, '-');
   const processSuffix = input.runId || `${Date.now()}`;
   const processName = `ejclaw-${safeName}-${processSuffix}`;
-  const activeProcessOptions: ActiveProcessOptions = {
-    drainFollowUpsAfterRun:
-      (group.agentType || 'claude-code') === 'codex' &&
-      isCodexSdkRuntimeMode(env, input),
-  };
   const finalizeCodexAuthSessionOnce = createCodexAuthSessionFinalizer(
     () => codexSessionAuth,
   );
@@ -258,7 +228,7 @@ export async function runAgentProcess(
       env,
     });
 
-    onProcess(proc, processName, env[EJCLAW_ENV.ipcDir], activeProcessOptions);
+    onProcess(proc, processName, env[EJCLAW_ENV.ipcDir]);
 
     const runnerInput: AgentInput = {
       ...input,