環境変数が未定義の場合のエラーメッセージをコンソール出力から削除

src/config/env.ts

@@ -20,7 +20,6 @@ const requiredEnvVars = [
 
 requiredEnvVars.forEach((varName) => {
   if (!process.env[varName]) {
-    console.error(`Environment variable ${varName} is required but not defined.`);
     throw new Error(`Environment variable ${varName} is required but not defined.`);
   }
 });