Disallow redundant typecasts. (#15030)

packages/a2a-server/src/config/settings.ts

@@ -123,7 +123,7 @@ function resolveEnvVarsInString(value: string): string {
   return value.replace(envVarRegex, (match, varName1, varName2) => {
     const varName = varName1 || varName2;
     if (process && process.env && typeof process.env[varName] === 'string') {
-      return process.env[varName]!;
+      return process.env[varName];
     }
     return match;
   });