make JWKValidator throw always exceptions if something fails

core/src/main/java/dev/fitko/fitconnect/core/validation/DefaultValidationService.java

@@ -213,11 +213,7 @@ public class DefaultValidationService implements ValidationService {
     }
 
     private JWKValidator addLogLevel(final JWKValidatorBuilder.JWKValidatorX5CErrorHandling validator) {
-        if (config.getCurrentEnvironment().isAllowInsecurePublicKey()) {
-            return validator.withoutThrowingExceptions().withErrorLogLevel(LogLevel.WARN).build();
-        } else {
-            return validator.withThrowingExceptions().withErrorLogLevel(LogLevel.ERROR).build();
-        }
+        return validator.withThrowingExceptions().withErrorLogLevel(LogLevel.ERROR).build();
     }
 
     private void validateWithoutCertChain(final RSAKey publicKey, final KeyOperation purpose) throws JWKValidationException {